SEASONAL FACTORS

Consumer Price Index: Selected Series

! 111

J u n e 1 9 5 3 - M a y 1 9 6 1

B u l l e t i n N o . 1 3 6 6

UNITED STATES DEPARTMENT OF LABOR

W. Willard Wirtz, Secretary

BUREAU OF LABOR STATISTICS

Ewan Clague, Commissioner

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SEASONAL FACTORS

Consumer Price Index: Selected Series

June 1953-M ay 1961

Bulletin No. 1366

M ay 1963

UNITED STATES DEPARTMENT OF LABOR

W. Willard Wirtz, Secretary

BUREAU O F LABOR STATISTICS

Ewan Clague, Commissioner

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PREFACE

The Consumer Price Index is one of the best known of the many 

statistical series produced by the U.S. Government. Because of its 

many u ses, such as in wage escalation, deflation of the national product and other important value series, formation of fiscal and monetary 

policies, and many other kinds of economic analyses and appraisals, 

there is broad public interest in the methods employed in constructing 

the index and in the factors which affect its behavior. Since the index 

is a monthly series, a subject which has been widely discussed is the 

degree of seasonality reflected in the index as a whole and in its 

components.

This bulletin supplies basic data with which Consumer Price 

Index series can be adjusted for seasonal variation. The bulletin was 

prepared by Marie Turnipseed in the Bureau’s Division of Consumer 

Prices and Price Indexes, under the general direction of Arnold Chase, 

A ssistant Commissioner for Prices and Living Conditions. Appreciation is expressed for the advice and consultation of Abe Rothman and 

his staff of the Bureau’s Office of Statistical Standards and the research of Wylodean Treece of the Division of Price Operations.

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CO N TEN TS

Page

Introduction « « « ........................................... .................................• •••••*««« 1

The B L S seasonal factor m e t h o d ........................................ ................................ 2

Selection of se rie s and computation periods • •••••«••••••••• 5

Periods to which factors a p p ly ..................................... .......................................... 10

Comments on sp e cific se rie s ............................................... ... 10

Tables • • • ••••••••••••••••••••••••••••«••••••• 15 thru 47

Table Series

1 A LL ITEMS

2 FOOD . • .

3 Food at home

4 M eats, poultry, and fish • • • «

3 M e a t s .............*••••••*,

6 Beef and v e al* ••••••<

7 Round steak ••••••<

8 Pork.......................................

9 Pork chops, center cut

10 Ham, whole* ••••••<

11 Lamb leg • • • .....................

12 Poultry, frying chickens * ,

13 F i s h ..........................................

14 F ish , fresh or frozen • • «

13 Dairy products ••«•••••••

16 Milk, fresh (grocery) * * * * •

17 B u tte r ...................•••••••

18 C heese, American process •

19 Fruits and vegetables • • • • •

20 Fresh fruits and vegetables

21 A p p le s ...............•••••••

22 Bananas ••••••••«••

23 Oranges • • • ......................

24 L e m o n s*.............••••••

23 P each es •••• .............. ...

26 Straw berries.........................

27 Grapes, se e d le ss • « • • •

28 Watermelons* * ...................

29 Potatoes .....................••••

30 Sweetpotatoes * ................

31 O n io n s........................••••

32 Carrots •••• ......................

33 Cabbage .....................••••

34 Tomatoes * .........................

33 Beans, green *•••••••

36 Other foods at home.............

37 Shortening, hydrogenated

38 E g gs, grade A, large. . •

LIST OF TABLES

Page Table Series

15

15

16

16

17

17

18 

18 

19

19

20 

20 

21 

21

39 HOUSING.........................................................

40 Gas and e le c tric ity ..................

41 G as, residential heating ••••••

42 G as, other than residential heating

43 Solid and petroleum fuels •••••••<

44 Solid fuels ••••• ............. ...

43 Fuel oil #2 •••••••••••••••<

46 H ousefurnishings........................... ... • • «

47 A PPA REL ......................................................

48 Men’ s and boys’ ........................ ..

49 Women’ s and g irls’* •••••••••••«

50 Other apparel (excluding footwear) * .

51 TRANSPO RTATIO N....................................

52 P r iv a te ..................................

53 Automobiles, new............................

22

22

23

23

54 MEDICAL C A R E .........................

55 PERSONAL C A R E ......................

56 READING AND RECREATION

24

24

25

25

26 

26 

27

27

28 

28 

29

29

30

30

31

31

32

57 OTHER GOODS AND SERVICES

SPECIAL GROUPS:

58 All items le s s food* ........................

59 Commodities le s s food •••••••

60 Nondurable commodities le ss food

61 Durable commodities* ••••••••

62 Transportation se rv ic e s...................

QUARTERLY SERIES:

32

33 

33

63

64

65

66

Sheets, m uslin* • • • • < 

Men’ s year-round su its

T ire s.................................

Television se ts • • • • «

Page

34

34

35

35

36

36

37

37

38 

38

38

39

39

40

40

41 

41

42

42

43

43

44

44

45

45

46

46

47

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SEASONAL FACTORS OF CONSOMER PRICE INDEXES

Prices for some kinds of goods and 

services are subject to seasonal fluctuations, or changes which recur regularly at 

certain times of the year. Such seasonal 

price movements may arise, for example, out 

of annually recurring changes in weather 

conditions, crop-growing cycles, the common 

practice of having special sa le s during specified months each year, holiday season s, 

and regular industry-model changeover 

periods. Although .movements of the summary, or all-items, Consumer Price Index are 

affected only very slightly by seasonal 

facto rs, the month-to-month changes in many 

of the component series are determined to a 

significant extent by seasonal influences.

Growing recognition of the importance 

of season al influences in period-to-period 

statistical comparisons has, in recent years, 

directed attention to the seasonal component in price trends. As a result, there have 

been requests for either seasonally adjusted 

price indexes or for adjustment factors 

which can be used to adjust or interpret indexes published only on an unadjusted 

b a s is .1

While recognizing the usefulness of 

seasonally adjusted data for many statistical 

series, the Bureau of Labor Statistics has,, 

for several reasons, not published the off!-* 

cial price indexes on a seasonally adjusted 

b asis. Seasonal fluctuations in the overall 

indexes are relatively minor, the result of 

offsetting seasonal movements in their various component series taking place simul­

^See, for example, Government Price Statistics,

Hearings before the Subcommittee on Economic Statist

tics of the Joint Economic Committee, Congress of

the United States (87th Cqftg., 1st sess.), Pursuant

to Sec. 5(a) of Public Law 304 (79th Congress), pt. 2, 

pp. 595-598.

taneously. This is especially true with 

respect to the Consumer Price Index, the 

all-items index used for most practical purposes. The administrative problems which 

might result from minor seasonal fluctuations, 

when using the index (not adjusted for se a ­

sonality) for contract adjustments are minimized, if such contract adjustments are 

provided for on the b asis of average price 

data for quarters or half years.

Another consideration involves the 

problems which might result from publication 

of the Consumer Price Index on both a se a ­

sonally adjusted and a seasonally unadjusted 

b asis, especially in months when the two 

indexes move in opposite directions. Users 

of the index might find a seasonally adjusted 

index, which gives different results from the 

unadjusted series, confusing in practical 

applications. This problem would be compounded by the fact that with an y of the 

currently used methods for season al adjustment, every additional period of data introduced into the computation to bring the 

series up-to-date changes, to some degree, 

the season al factors for the period immediately preceding. Although one of the primary 

goals of the BLS method of seasonal adjustment is the control, within acceptable limits, 

of changes in season al factors when a series 

is updated, changes in the seasonal factors 

for recent years do occur each time an additional year’s data are included in the calculations. The implications of such changes 

in contract adjustments are obvious.

In its monthly analysis of the CPI, the 

BLS attempts to indicate in a general way— 

that is, without presenting seasonally 

adjusted indexes—the commodity and service 

areas in which the price movements are

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seasonal. Seasonal factors have been 

available for this purpose over the years. 

In earlier years, they were computed by hand 

by standard textbook procedures; in more 

recent years, they have been computed with 

the use of the Census Univac methods. 

Currently, these factors are computed on the 

basis of the BLS techniques developed in 

connection with employment and unemployment statistics. These seasonal factors are 

being made available now to meet, if only 

partially, the requests of economic analysts 

concerned with prices.

This bulletin includes a description of 

the BLS method used in computing the seasonal factors currently in use; a discussion 

of its application to consumer price series; 

comments relating to specific series; and 

tables containing seasonal factors and the 

original price indexes for 66 selected 

se rie s.2 Publication of seasonal factors is 

limited to selected series where the results, 

after intensive review, seem reasonably 

satisfactory. The tables indicate which 

factors seem most appropriate for use in

2Analysts requiring additional tables generated in 

the course of the computer calculation of die seasonal 

factors presented in this bulletin may secure these 

from the U.S. Department of Labor, Bureau of Labor 

Statistics, Washington 25, D.C.

analysis of current price trends. For some 

series, special expedients had to be adopted 

before the BLS seasonal factor computation 

technique could be applied, e.g.i for series 

in which price data were available for only 

selected months of each year.

A major revision of the Consumer Price 

Index will be introduced in December 1963, 

which probably will have a pronounced 

effect upon the seasonal patterns of many of 

these series. The revision will include 

changes in city, item, and outlet samples 

and weights, in pricing procedures, and in 

the classification of items. Greater caution 

should be exercised in using these factors 

in the analysis of current price trends after 

that date.

A seasonally adjusted series can be 

obtained by dividing the original price series 

for each month by the corresponding seasonal 

factor and multiplying by 100. For the historical series, generally covering June 1953 

through May 1961, each month of each year 

has its corresponding factor. For indexes 

subsequent to the latest month given in the 

table, it is recommended that the set of 

factors identified in the same table as for 

"subsequent” years be used.

THE BLS SEASONAL FACTOR METHOD

General Method

The BLS method for deriving seasonal 

factors for economic time series was developed late in 1959. It was introduced early 

in i960 in application to the labor force 

se rie s.5 Since then, the Bureau's continued

5For a detailed description of the method and procedure at that time, see Special Labor Force Reports, 

No. 8, New Seasonal Adjustment Factors for Labor

Force Components, by Morton S. Raff and Robert L. 

Stein, U.S. Department of Labor, Bureau of Labor Statistic s, Reprint 2349 from the Monthly Labor Review,

August I960.

activities in this area have resulted in 

changes and improvements in the method and 

its electronic computer application.4 This 

description of the method is an adaptation 

from these earlier articles. (Additional 

changes have been giade in the method in

A full description of the method and its computer 

application which was used in deriving the seasonal 

factors for the price series is given in "The BLS Seasonal Factor Method," a paper presented at the Interstate Conference on Labor Statistics, Atlantic City, 

N .J., June 21, 1962, by Abe Rothman, Office of Statistical Standards, Bureau of Labor Statistics.

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application to the labor force series in 1963* 

These modifications, however, were not used 

in this study.)

The BLS procedure is based on the 

ratio-to-moving-average method. It divides 

the original time series (O ) into three components: The trend-cycle (T), or the smooth 

curve which shows the underlying movement 

of the series; the seasonal (S ), or the part 

which is related to the particular month of 

the year and which has approximately the 

same pattern from one year to the next; and 

the irregular (I), or the random fluctuations 

remaining after the fitting of the trend-cycle 

and seasonal. A multiplicative relationship 

is assumed (O = TSI).

The computations performed in developing the seasonal factors are a series of 

successive approximations, in which each 

iteration, or cycle of computing steps, gets 

closer to the desired final result. Iterations 

are performed in sets of three, each iteration 

beginning with an estimate of the trend-cycle 

(T) and each resulting in an improved estimate for each of the components. The first 

such estimate is the centered 12-month 

moving average of the original data. This 

estimate for each month is then divided into 

the corresponding original value (O ) to produce a series of seasonal-irregular ratios 

(SI) (O *5- T = S I). With each month treated 

separately and with years arranged consecutively, 5-year weighted moving averages of 

these ratios are computed to provide estimates of the unforced seasonal factors (S')« 

The unforced seasonal factors for each year 

are then adjusted to give a monthly average 

of 100 for the year. These forced seasonal 

factors (S) are the final seasonals for the 

cycle. Each final seasonal is divided into 

the corresponding seasonal-irregular to obtain 

the irregular (SI ? S = I). This completes the 

first iteration.

If the estimated trend-cycle is a good 

fit, then the irregular component will have a 

random appearance. If, on the other hand, 

there are places where the trend-cycle does 

not fit well, as when a moving average fails 

to penetrate the peaks and troughs in the 

original series, then the irregular component 

will include a residual trend-cycle in addition to erratic fluctuations.

Before the second iteration begins, an 

improved estimate of trend-cycle is obtained. 

This is calculated by combining the trendcycle used in the first iteration, i.e., the 

12-month moving average, with any trendcycle that can be withdrawn from the irregular ratios developed in the first iteration. 

A serious defect of the 12-month moving average is that it does not follow the original 

series very well when there are rapid changes 

in level or direction. Any error in the trendcycle produces a corresponding error in one 

or both of the other two components, chiefly 

in the irregulars, since the seasonals have 

been obtained by averaging the SI ratios for 

successive years. A weighted 7-month 

moving average of the series of irregulars 

is computed to remove the residual trendcycle. The 12-month moving average of the 

original data from the first iteration is then 

multiplied by this smoothed irregular to obtain the improved estimate of trend-cycle, 

with which to start the second iteration.

A second and a third iteration repeat 

the steps of the first iteration. Investigation has shown that three iterations for each 

set is the optimum number. Too few iterations leave some of the trend-cycle in the 

irregular component, while too many iterations build up erratic fluctuations in the 

trend-cycle. The seasonal factors are not 

appreciably affected by moderate departures 

from the optimum number of iterations.

The procedure also includes a routine 

for handling extreme values that do not seem

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to belong to the general pattern of the data. 

(These values may have a real economic 

cause such as very unseasonable weather or 

a strike.) The test identifies extreme values, 

if any, and provides replacement estimates. 

It follows the same general, pattern of computational steps as each of the iterations. 

The test procedure, however, uses special 

weighting patterns which give zero weight 

to the*central value in computing the criterion 

against which each “test* irregular is judged 

in order to minimize the effect of an extreme 

value on the trend-cycle and seasonal components. The distribution of the "test” irregulars is then examined to see whether 

any of them lie outside specified control 

limits.

If the testdisclo ses no extreme values, 

the trend-cycle, seasonal, and irregular components of the third iteration are regarded 

as final.

If extreme values do exist, each is replaced by a substitute value which is the 

product of the trend-cycle and seasonal components from the test iteration. This modified original series is then processed in the 

usual way, starting with the centered 12- 

month moving average and repeating the first 

three iterations. The trend-cycle and seasonal components from this third iteration 

are final. The original extreme values are then 

restored, to compute the final irregular component and the seasonally adjusted series. 

This assigns the deviation in an extreme 

original value to the irregular component.

Standard deviations of the irregulars 

(dj) are calculated both before and after extreme values are replaced. These are useful 

in evaluating the effect of the test iteration 

and the replacement of original observations 

identified as extreme, and as guides in 

measuring the reliability of the seasonal 

factors. From experimentation, it has been

determined that the standard deviation of each 

seasonal factor (erg) may be approximated as 

0.6 of the standard deviation of the irregulars. 

This dg may be used to test each seasonal 

factor for significance as compared to no 

seasonality (or 100). To test the significance of the seasonal movement from one 

month to another, the formula for the difference in seasonal factors is suggested.5 

Differences and percent changes in the 

factors generally are of about the same magnitude. The correlation between the se asonal factors is small and may be disregarded.

Advantages and Limitations of the BLS

Method

The BLS method of computing seasonal 

factors differs in several respects from earlier methods. Changing seasonal factors 

provide insight into underlying economic and 

technological forces which escape detection 

in fixed seasonals. A number of price series, 

for example, show a narrowing of seasonal 

movement in response to attempts to eliminate production and marketing peaks and 

valleys.

The BLS method also provides that, 

when a series is updated, the seasonal 

factors relating to the earlier years of a 

series will remain practically the same as 

those of prior series. Magnitude of changes 

for the more recent period are also reduced.

The seasonal pattern for the current 

year, however, will never be exactly like the 

average for any set of past years. Marketing 

activity, for example, may vary from year to 

year with weather conditions. Although new 

automobile models are introduced each year,

5tfd = 2 + «,2 = i.4 l4 2 rfs

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the start of the plant shutdowns for retooling 

may vary from one year to the next. Shutdowns for vacations and other forms of shutdowns do not occur at the same time each 

year.

In addition, the interpretation of seasonal factors is complicated by the problems 

of measurement inherent in the original data. 

To the extent that original series are subject 

to sampling or reporting error; the seasonal 

factors will be subject to uncertainty.

Illustrative Charts

A group of charts illustrate the results 

of the BLS method. The price series for

fresh milk bought in grocery stores is used. 

Charts 1 and 2 show the original price index 

and its three final components: Trend-cycle, 

seasonal factors, and the random or irregular 

component, over the period from June 1953 

through May 1961. The timing dates of the 

extreme values in the original series are 

identified on the chart of irregulars, the component to which the deviations have been 

assigned. Chart 3 shows the changes over 

the years in each of the 12 monthly seasonal 

factors. Chart 4 shows for selected months, 

March, June, and December, the relationships 

of the final seasonal-irregular values to the 

final seasonal factors.

(Cont’d on page 6 thru 8)

SELECTION OF SERIES AND COMPUTATION PERIODS

About 90 series were chosen initially 

for the computation of seasonal factors, and 

66 of these were selected for publication. 

The major criteria for selection were the 

importance of the series, the existence of a 

strong seasonal movement, special interest 

in the seasonal pattern, and the absence of 

procedural problems. The 8 major-group 

series, for example, were selected because 

of their importance in the Consumer Price 

Index. As examples of procedural problems, 

some series which might otherwise have been 

selected were omitted because they were not 

long enough for the BLS method to be applicable, i.e., 6 years, or because there was a 

change in the procedure for calculating the 

price series during^the 6-year period, which 

would have a pronounced effect upon the seasonal variation. It would not be appropriate

to average factors under these circumstances, 

and lack of basic data or budgetary considerations limited the recalculation of such 

price series for the earlier part of the period.

The seasonal factors generally cover 

the 8-year period, June 1953 through May 

196l, computed from price series extending 

an additional 6 months at each end, thus 

covering from December 1952 through November 1961. The series were not extended back 

of December 1952 because changes in city, 

item, and outlet sample, and in pricing procedures which were introduced in the 1953 

revision of the Consumer Price Index, had 

pronounced effects upon seasonal patterns. 

Shorter periods of time were selected for 

some series because of procedural changes 

introduced after June 1953* (Cont'd on page 9)

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Chart 1. FRESH MILK (GROCERY), JUNE 1953-MAY 1961

CONSUMER PRICE INDEX AND TREND-CYCLE

INDEX (1957-59=100) (1957-59=100) INDEX

PERCENT SEASONAL AND IRREGULAR COMPONENTS PERCENT

UNITED STATES DEPARTMENT OF LABOR • BUREAU O f LABOR STATISTICS

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Chart 4. Fresh Milk (Grocery), June 1953-May 1961

Seasonal Irregular Values and Seasonal Factors for Selected Months

Percent Percent

102.0

101.5

101.6

100.5

100.0

99.5

99.0

98.5

98.0

97.5

97.0

96.5

0'

i

1

c

[

--------C1

«

1

«

1

G

m\

102.0

101.5

101.0

100.5

100.0

99.5

99.0

98.5

98.0

97.5

97.0

96.5

ro

«

i------- G

• 1

•

1---- F -0

! Dec

1

:ember

• M<arch

• • ^ 1^

•

•

0-------

•

sasonal-■Irregulcir Value»s

•

A ^

rs . .

•

me

• •

\ *

\

Seaitonal Fcictors

•

S '

11 Hi mi 11 i mu iim i ii h i 11 \ W%

1953 1954 1955 1956 1957 1958 1959 1960 1961

UNITED STATES DEPARTMENT OF LABOR • BUREAU OF LABOR STATISTICS

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A list of the series selected for publication, with the standard deviations of the 

seasonal factors, is shown below. (The 

standard deviations are shown to two decimal places, not because they are considered 

reliable to the second place but to minimize 

the accumulation of rounding errors in subsequent calculations.) The application of 

these standard deviations is illustrated in

the comments on the all-items and major 

group series. This kind of evaluation was 

an important consideration in determining 

which of the other series should be published. 

However, since there are widely varying 

degrees .61 reliability among the published 

series, it is suggested that consideration be 

given to this kind of evaluation and caution 

exercised in using the factors.

Selected Consumer Price Index Series

with Standard Deviations of the Seasonal Factors

Series Standard

Deviation Series Standard

Deviation

ALL ITEMS............................................... ........... 0.07 HOUSING........................................................ 0.06

Gas and e le c tr ic ity ................................ .08

F O O D ............................................ ....................... .19 G as, residential heating..................... .14

Gas, other than residential heating. .12

Food at h o m e.................................................. .21 Solid and petroleum fu els.............. .14

Solid f u e l s ............................................ .10

Meats, poultry, and f i s h .......................... .33 Fuel oil # 2 ............................................ .31

M e a ts..................................................... .39 Housefurnishings...................................... .10

Beef and v e a l ................................... .40

Round s t e a k ................................... .44 APPAREL........................................................ .07

Pork........................................................ .69 Men's and boys'......................................... .07

Pork chops, center c u t ............... .94 Women's and g ir ls '................................... .13

Ham, whole...................................... .62 Other apparel (excluding footwear)* . . .08

Lamb, l e g ............................................ .62

Poultry, frying chickens.......................... .65 TRANSPORTATION................................... .15

F is h ........................................................... .12 Private . ; .................................................. .16

Fjsh fresh or frozen TTrTTrrr# .19 Automobiles, new ................................. .20

Dairy p rodu cts............................................ .11 MEDICAL CARE............................................ .07

Milk, fresh (grocery)............................. .13

B u tter........................................................ .29 PERSONAL C A R E ...................................... .07

Cheese, American p ro ce ss.................. .13

READING AND R E C R E A T IO N ............... .11

Fruits and v e g e ta b le s............................. .61

Fresh fruits and v e g etab les............... .95 OTHER GOODS AND S E R V IC E S ............ .08

A p p le s.................................................. 1.12

Bananas ............................................... 1.08

Oranges ............................................... 1.51

L e m o n s............................................... .78 SPECIAL GROUPS:

Peaches ............................................... 1.88

Strawberries. . ................................... 1.89 All items le ss fo o d ...................................... .05

Grapes, s e e d l e s s............................. 2.09 Commodities le ss food................................ .06

Watermelons......................................... 2.29 Nondurable commodities le ss food .... .07

P o t a t o e s ............................................. 2.56 Durable com m odities................................... .11

Sw eetp otato es................................... .98 Transportation se r v ic e s............................. .10

O nions.................................................. 3.43

Carrots................................................... 1.15

Cabbage ............................................... 2.62

Tomatoes ...................................... .. . 4.06 QUARTERLY SERIES:

Beans, green ...................................... 4.52

Sheets, m u slin ............................................... .14

Other foods at h om e................................. .36 Men's year-round s u its............................. ... .11

Shortening, hydrogenated..................... .30 T ir e s................................................................ .48

E ggs, grade A, l a r g e ................. 1.70 Television s e t s ............................................ .17

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PERIODS TO WHICH FACTORS APPLY

The factors as given in the tables are 

recommended for adjusting the historical 

index series shown with them* that is, for 

the period shown, usually June 1953 through 

May 1961. Each month of each year has its 

corresponding factor. Those for the most 

recent year, generally June I960 through 

May 1961, are suggested for adjustment of 

data subsequent to May 1% \. These are 

shown on the last line of each seasonal factor table. Since the original factors for June 

I960 through May 1961 relate to parts of 2 

calendar years and may not average 100.0, 

the unforced factors from computer calculations were tested and adjusted, if necessary,

to average 100.0,6 for incorporation in the 

series identified as "subsequent.” Greater 

caution should be exercised in using these 

factors in the analysis of current price trends 

after December 1963, because of the introduction of a major revision of the Consumer 

Price Index on that date.

^In the computer procedure, forcing of factors is on 

a calendar year b asis. When a series does not start 

with a January value or end with a December value, 

the forcing is performed in two stages. The first (or 

last) 12 . consecutive unforced season als are used to 

calculate a forcing factor. This factor is applied to 

the unforced season als for the partial year. For each 

of the remaining years, the forcing factor is based on 

the calendar year. This procedure is used for the BLS 

employment series. Any method of forcing, however, 

creates breaks in a series; and this problem is under 

consideration by the Bureau.

COMMENTS ON SPECIFIC SERIES

All Items and Major Groups

The all-items series and the 8 major 

groups were selected for computation and 

publication because of their importance. 

Except for food, apparel, and transportation, 

however, these series are characterized by 

very little seasonal variation and a relatively 

high degree of irregularity. In the all-items 

index, for example, the patterns of seasonal 

variation, the timing of the peaks and troughs, 

vary so greatly and in such a way among the 

component series that the movements offset 

each other to a very large extent.

The reliability of the seasonal factors 

should be considered when using them. For 

the all-items index, for example, the range 

of the "subsequent” (i.e., current) factors is 

from 99.8 to 100.2. Only two of these factors 

differ significantly from 100.0, i.e., by as 

much as two standard deviations (2crs)» The

seasonal movement between successive 

months is significant only twice (2d^)J For 

the earlier part of the computation period, 

about half of the factors are significantly 

different from 100.0, and the seasonal movement between successive months is significant about one-third of the time. Among the 

major groups, the apparel, food, and transportation series clearly show significant 

seasonal movement. For apparel, for example, the range of the "subsequent” factors 

is from 99.4 to 100.9, with all 12 differing 

significantly from 100.0 and with seasonal 

movement between successive months significant in 6 cases.

The apparel series in the tables covers 

only the period June 1959 through May 1961, 

because of a change in statistical procedures

.7 Z<fd = 2.8284 crs

10

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Federal Reserve Bank of St. Louis
for seasonal items of apparel, introduced in 

June 1959. In the computation of seasonal 

factors, a recalculated but unpublished price 

index, which incorporated the revised procedure, was used for the period from June 

1959 back to December 1952. The evaluation 

above, however, is based on the standard 

deviation calculated for the entire period.

Effective in March 1963, a revised procedure for estimating the price level in 

unpriced cities of all items of apparel was 

introduced, which affects their seasonal patterns. Instead of using as an estimator the 

price movement of the 5 large cities which 

are priced monthly, the price level of the 

unpriced cities is now held constant. The 

indexes move somewhat differently, and the 

"subsequent” seasonal factors are not strictly 

applicable after February 1963? The effect 

of this change in procedure upon the seasonal 

pattern of the all-items series is negligible, 

since this estimated part of apparel has relatively little importance in the all-items 

series.

In the personal care series, this same 

change in procedure wias made for several of 

the commodities. The relative importance 

of these commodities is large enough for the 

revised propedure to have a slight effect 

upon the seasonal pattern of the personal 

care series.8

Subgroups

Computations of seasonal factors for 

all 13 subgroups were made for evaluation. 

After review of the results, it was decided 

that 5 series should not be published: Food 

away from home, rent, household operation,

8This revised procedure was introduced while this 

bulletin was in preparation. Indexes for the period 

prior to March 1963 are being recalculated for these

series, according to the revised procedure. Seasonal 

factors, based upon the recalculated price series, may 

be secured upon request from the U.S. Department of 

Labor, Bureau of Labor Statistics, Washington 25, D.C.

footwear, and public transportation. In the 

series for rent and household operation, the 

range of factors for the most recent year of 

the computation period is only 0.2; for food 

away from home and footwear, 0.3; and for 

public transportation, 0.6. For public transportation, the series of factors as a whole 

is erratic and irregular, with a value of 0.3 

for 2cg. The other 8 subgroups are shown 

in the tables: Food at home, gas and electricity, solid and petroleum fuels, housefurnishings, men’s and boys’ apparel, women’s 

and girls’ apparel, other apparel (excluding 

footwear), and private transportation.

The men’s and boys’ and women’s and 

girls’ apparel series in the tables cover only 

the period June 1959 through May 1961, for 

the same reason that the entire period for 

the total apparel series is not included in 

the table.

The revised procedure for calculating 

the price indexes for all-items of apparel, 

which is discussed in the comments on the 

all-items and major-group series, applies 

also to the housefumishings9subgroup. The 

effect of the change in procedure in this subgroup upon the seasonal patterns of the housing series and the all-items series is negligible.

Groups, Subgroups, and Classes of Items of

Food at Home

Thirteen of the 17 series in this highly 

seasonal category were selected for computation (including poultry and lamb as classes 

of items even though there is only one priced 

series in each). The factors for beverages 

and fats and oils are not published because 

of the irregular and erratic nature of the 

series.

^See footnote 8

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Items of Food at Home

Twenty-eight items of food at home 

were selected for computation: All the highly 

seasonal fresh fruits and vegetables except 

com-on-cob and grapefruit, samples of those 

meats and dairy products which show pronounced seasonal patterns, eggs, cola 

drinks, hydrogenated shortening, and lard. 

Corn-on-cob and grapefruit were excluded^ 

because of a procedural problem. Com-on-cob 

has been priced only since the summer of 

1961 and grapefruit has been priced yearround only since 1959. Four series were not 

considered satisfactory for publication 

because of the irregular and erratic nature 

of their seasonal movement: Lettuce celery, 

cola drinks, and lard.

In several of these series, there are 

months when price indexes have not been 

published because an adequate number of 

price quotations had not been collected. For 

each of these months, the index was estimated by applying the weighted average 

month-to-month price relative of all cities 

from which an adequate number of price quotations had been collected for each of the 

comparable months, to the index of the earlier 

month.

The four fresh fruits which are priced 

only for specified seasons, peaches, strawberries, grapes (seedless), and watermelons, 

presented special problems, both methodological and operational. Hypothetical price 

indexes must be provided for all intervening 

months between pricing seasons to preserve 

the proper trend-cycle for the price series. 

In other words, the indexes fof .the priced 

periods must be associated with their appropriate periods over time. Estimates of trendcycle were used as price indexes. These 

estimates were made by making a straightline interpolation between the average 

indexes of successive pricing seasons. For

example, for the peach series, an arithmetic 

average of the three indexes for July, August, 

and September of 1953 was calculated and 

associated in point of time with August. The 

same thing was done for 1954. A straightline interpolation was made between the two 

values. The resulting indexes for the 

unpriced months, October 1953 through June 

1954, were used as estimates for those months. 

After the machine computations had been 

made, the unforced seasonal factors for the 

pricing season of each calendar year were 

forced to average 100.0. Standard deviations (0.6o|) were then calculated for this 

set of factors.

The factors for these four seasonal 

fruits were calculated more recently than for 

the other series (as part of a special study), 

so were developed from price indexes extending through the pricing seasons of 1962.

“Other” Housing Series

Six series below the subgroup level in 

the housing group were selected for computation: Residential heating gas, gas for other 

than residential heating, electricity, solid 

fuels, fuel oil #2, and laundry soap and detergents. The factors for two series, electricity 

and laundry soap and detergents, are not 

being published. The range of factors for 

the most recent year of the computation period 

for the electricity series is only 0.3. The 

series for laundry soap and detergents shows 

more seasonal variation (with a range of 0.7 

for the factors for the most recent year), but 

the seasonal movement is very irregular and 

erratic.

The solid fuels series in the table 

covers only the period June 1956 through May 

1961. Only since December 1955 has the 

price series been calculated monthly.

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Federal Reserve Bank of St. Louis
“Other” Transportation Series

New automobiles is the only additional 

series in the transportation group, for which 

seasonal factors are published. The factors 

for this series were calculated more recently 

than those for most of the other series (as 

part of a special study), so were developed 

from data extending through 1962. The series 

of published factors does not start until January I960 because of a change in index procedure in 1958. A revised method for introducing new models became effective in the 

fall of 1958. Instead of taking the change to 

a new model in 1 month, the current procedure 

is to use the relative importances of sales 

of the new and old models as weights, until 

90 percent of the sales are of the new model. 

In order to obtain a 6-year price series which 

would more nearly reflect the current CPI 

procedure, estimated price indexes for October, November, and December of 1957 were 

substituted for the indexes which have been 

published. The difference in the index levels 

between September 1957 and January 1958 

was distributed by the relative importances 

of the month-to-month percent changes in the 

indexes from September 1958 to January 1959. 

The factors from I960 to date are practically 

free from the effect of these estimated price 

indexes. Standard deviations were calculated 

for the period of the published factors.

Care should be taken in using the factors for this series. As stated by the Price 

Statistics Review Committee formed under a 

contract which was entered in to by the Bureau 

of the Budget and the National Bureau of 

Economic Research in July 1959, “ For certain 

commodities price changes are customarily 

made annually at the date of model change. 

In addition there may be a seasonal pattern 

superimposed that reflects varying discounts 

from list prices. When price movements have 

been predominately in one direction (recently 

upward) over a period of years, care must be

taken to isolate the two types of price changes 

to prevent the seasonally adjusted price 

series from smoothing the annual price change 

over the year rather than appearing in the 

month in which list prices are changed. This 

point becomes especially important if the 

direction of annual price change should be 

reversed.”10This means that in times of rising 

prices, the yearend rise may all be credited 

to seasonality whereas part is the year’s 

accumulated rise resulting from the rising 

trend. When the cycle turns down, the seasonal adjustment factors, influenced by data 

for previous years, overstate the seasonal 

swing.

Interest has been expressed in two other 

transportation series which have considerable 

seasonal variation: Used automobiles and

gasoline. The used automobile series is 

excluded for technical reasons. In the CPI 

procedure, an intra-annual adjustment is made 

to reported prices, designed to maintain an 

automobile of "constant age” . In other words, 

the price level reflected in the index every 

month is an estimate of the price level of an 

automobile of the same age, for example, 

exactly 4 years. January is regarded as the 

birthmonth, and the prices for subsequent 

months are adjusted until the following January. At that time, an annual comparison is 

made with the price of the model 1 year earlier. For example, for a 4-year old automobile, the price of a 1959 model in January 

1963* is compared with the price of a 1958 

model in January 1962. This adjustment of 

prices within the year may be regarded as a 

variant of seasonal adjustment. In regard to 

gasoline, the problem relates to the length 

of the price series as currently computed and 

the amount of irregularity in the seasonal 

variation. It was computed monthly for only 

5 years of the computation period for seasonal

^Government Price Statistics, op. cit., Pt. 1, January 24, 1961, footnote 7, p. 45.

13

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factors; and during' the first year of that 

period, the number of priced cities was 

increased from 19 to 46.

Special Groups

Seasonal factors were computed for 8 

special-group series for evaluation. Three 

series (commodities, durables less cars, and 

services le ss rent) are not being published 

because of lack of significant seasonal movement. The other five are presented in the 

tables. Except for all items less food, these 

series are limited to the period June 1956 

through May 1961. Only since December 

1955 have the price series been calculated 

monthly.

Quarterly Series

Nine quarterly series were selected for 

computation: Textile housefumishings,

sheets, appliances, television sets, floor 

coverings, furniture and bedding, men’s yearround suits, tires, and prescriptions and 

drugs. These presented several problems. 

Figures for missing months in price series 

were estimated by repeating the quarterly 

index for the months immediately before and 

after.11 The minimum computation period of

11 An alternative method of estimating missing months, 

straight-line interpolation, was used in a preliminary 

test made with several series. The two methods gave 

practically identical factors for the quarterly months 

(with only a few variations of not more than 0.1).

6 years was selected because of a significant changeincity sample in December 1956. 

The small cities of the D stratum were added 

to the series at that time, bringing the total 

sample up from 14 to 19. The computation 

period, February 1956 through January 1962, 

still overlaps by about a year the series 

based on only the 14 larger cities. The published series, however, cover only the period 

from June 1957, 6 months after the change in 

city sample. After machine computation, the 

final unforced seasonals for each four successive quarterly periods were forced so as 

to average 100.0, with the grouping starting 

at the end of the series. In other words, 

September and December of 1 calendar year 

were grouped with March and June of the following year. The regular computer procedure 

was applied^to the partial year at the beginning of each series. Also, standard deviations were recalculated from the quarterly 

irregulars for the published period.

Except for sheets, . television sets, 

men’s year-round suits, and tires, the series 

are characterized by little or no seasonal 

variation and a relatively high degree of irregularity. Only these four are included in the 

tables. The factors for tires have a relatively large standard deviation, but much of 

the irregularity occurred in 1959 or earlier.

14

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Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series

Year Jan . Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

1. A ll items

Seasonal factors

1953 ..................

- - - - - 100.1 100.3 100.2 100.2 100.2 100.1 99.8

1954 .................. 99.9 99.9 99.8 99.7 99.9 100.1 100.3 100.2 100.1 100.2 100.1 99.8

1955 .................. 99.9 99.9 99.8 99.7 99.9 100.1 100.3 100.2 100.1 100.1 100.1 99.8

1956 .................. 99.9 99.9 99.8 99.7 99.9 100.1 100.3 100.1 100.1 100.1 100.1 99.9

1957 .................. 99.8 99.9 99.8 99.8 99.8 100.1 100.3 100.1 100.0 100.1 100.1 99.9

1958 .................. 99.8 99.9 99.8 99.9 99.9 100.1 100.2 100.1 100.0 100.1 100.1 99.9

1959 .................. 99.9 99.9 99.8 99.9 99.9 100.1 100.2 100.0 100.0 100.1 100.1 100.0

1960 .................. 99.9 99.9 99.9 99.9 99.9 100.1 100.2 100.0 100.0 100.1 100.1 100.0

1 9 6 1 .................. 99.9 99.9 99.8 99.9 99.9 - - - - - -

Subsequent ^ 99.9 99.9 99.8 99.9 99.9 100.1 100.2 100.0 100.0 100.1 100.1 100.0

Price indexes (1957-59 = 100)

1953 ..................

- - - - - 93.3 93.5 93.7 93.9 94.1 93.7 93.6

1954 .................. 93.9 93.7 93.6 93.4 93.7 93.8 93.9 93.7 93.5 93.3 93.4 93.2

1955 .................. 93.2 93.2 93.2 93.1 93.1 93.2 93.5 93.3 93.6 93.6 93.7 93.5

1956 .................. 93.4 93.4 93.5 93.6 94.1 94.7 95.4 95.2 95.4 95.9 96.0 96.2

1957 .................. 96.3 96.7 96.9 97.2 97.5 98.0 98.5 98.6 98.7 98.7 99.1 99.1

1958 .................. 99.7 99.8 100.5 100.7 100.7 100.8 101.0 100.8 100.8 100.8 101.0 100.8

1959 .................. 100.9 100.8 100.8 101.0 101.1 101.5 101.8 101.7 102.0 102.3 102.4 102.3

1960 .................. 102.2 102.4 102.4 102.9 102.9 103.1 103.2 103.2 103.3 103.7 103.8 103.9

1961.................. 103.8 103.9 103.9 103.9 103.8 - - - - - - -

2. Food

Seasonal factors

1953 ..................

- - - - - 101.0 101.5 101.1 100.6 100.1 99.2 99.0

1954 . ............... 99.4 99.3 99.2 99.6 100.2 101.0 101.7 101.0 100.5 100.1 99.3 99.1

1955 .................. 99.3 99.4 99.2 99.6 100.1 101.0 101.6 101.0 100.5 100.0 99.3 99.0

1956 .................. 99.4 99.3 99.4 99.7 100.2 100.9 101.6 100.9 100.5 99.9 99.4 99.1

1957 .................. 99.4 99.4 99.5 99.8 100.1 100.9 101.5 100.6 100.5 99.9 99.4 99.2

1958 .................. 99.4 99.3 99.5 99.9 100.2 100.9 101.4 100.5 100.2 99.9 99.5 99.3

1959 .................. 99.5 99.5 99.6 100.0 100.1 100.8 101.2 100.5 100.3 99.9 99.5 99.3

1960 .................. 99.6 99.4 99.6 100.1 100.1 100.8 101.2 100.3 100.2 100.0 99.6 99.5

1961.................. 99.5 99.5 99.5 100.1 100.1 - - - - - - -

Subsequent^ 99.5 99.5 99.5 100.1 100.1 100.8 101.2 100.3 100.2 100.0 99.6 99.5

Price indexes (1957-59 = 100)

1953 ..................

- _ - - - 96.4 96.4 96.7 96.4 96.3 94.9 95.2

1954 .................. 95.8 95.4 95.0 95.3 96.0 96.4 97.1 96.5 95.3 94.7 94.2 93.6

1955 .................. 93.7 93.9 93.9 94.2 94.2 94.3 95.0 94.2 94.6 93.9 93.1 92.8

1956 ____ . . . 92.5 92.2 92.4 92.9 94.1 95.9 97.3 95.8 95.8 95.8 95.7 95.7

1957\ ............... 95.6 96.3 95.9 96.4 97.1 98.5 99.5 99.9 99.2 98.6 98.3 98.4

1958 .................. 100.2 100.6 102.4 103.1 103.1 103.1 103.1 102.3 101.9 101.4 101.2 100.6

1959 .................. 100.8 100.2 99*7 99.7 99.7 100.8 101.2 100.3 100.6 100.3 99.9 99.8

1960 99.7 99.5 99.7 101.3 101.4 101.9 102.2 101.8 101.9 102.5 102.6 102.9

1961 102.8 102.9 102.7 102.7 102.3 - - - - - -

See footnotes at end of tab les.

15

Digitized for FRASER 

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Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series-Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

3. Food at home

Seasonal factors

1953 ..................

- - - - - 101.2 101.8 101.3 100.7 100.1 99.1 98.9

1954 .................. 99.2 99.1 99.2 99.6 100.2 101.3 101.9 101.1 100.6 100.1 99.1 98.9

.1955 .................. 99.1 99.2 99.1 99.5 100.2 101.2 101.9 101.2 100.6 100.0 99.1 98.9

1956 .................. 99.2 99.2 99.3 99.7 100.2 101.1 101.9 101.0 100.5 99.9 99.3 98.9

1957 .................. 99.2 99.2 99.4 99.7 100.1 101.1 101.8 100.8 100.5 100.0 99.3 99.0

1958 .................. 99.3 99.1 99.3 99.9 100.2 101.1 101.6 100.6 100.3 99.9 99.4 99.2

1959 .................. 99.3 99.3 99.5 100.0 100.1 100.9 101.4 100.6 100.3 99.9 99.4 99.2

1960 .................. 99.4 99.2 99.5 100.1 100.2 101.0 101.4 100.4 100.2 100.0 99.5 99.4

1 9 6 1 .................. 99.4 99.3 99.4 100.1 100.1 - - - - - - -

Subsequent ^ 99.4 99.3 99.4 100.1 100.1 101.0 101.4 100.4 100.2 100.0 99.5 99.4

Price indexes (1957-59 = 100)

1953 ..................

- - - - - 97.8 97.9 98.2 97.7 97.5 95.9 96.1

1954 .................. 96.9 *96.4 95.9 96.2 97.1 97.5 98.3 97.5 96.0 95.4 94.8 94.0

1955 .................. 94.1 94.3 94.4 94.8 94.7 94.9 95.6 94.7 95.0 94.1 93.1 92.9

1956 .................. 92.5 92.2 92.3 92.9 94.2 96.5 97.9 96.2 96.1 96.1 95.8 95.7

1957 .................. 95.6 96.4 95.9 96.5 97.2 98.7 99.9 100.3 99.4 98.7 98.2 98.4

1958 .................. 100.4 100.9 102.9 103.7 103.7 103.6 103.7 102.6 102.2 101.5 101.2 100.5

1959 .................. 100.8 99.9 99.4 99.2 99.1 100.3 100.8 99.6 100.0 99.7 99.1 99.0

1960 .................. 98.7 98.5 98.7 100.4 100.7 101.3 101.5 101.0 101.0 101.7 101.9 102.2

1961.................. 102.0 102.1 101.8 101.8 101.3 - • “ • - -

4. Meats, poultry, and fish

Seasonal factors

1953 ................... - - - - - 102.0 102.3 102.2 102.4 100.2 97.8 97.3

1954 .................. 98.2 98.6 98.5 99.7 100.3 102.1 102.3 102.1 102.2 100.3 97.9 97.3

1955 .................. 98.2 98.9 98.5 99.7 100.3 102.2 102.6 102.2 102.5 100.3 97.9 97.3

1956 .................. 98.3 98.9 98.7 99.7 100.3 102.1 102.7 101.8 102.1 100.1 98.2 97.5

1957 .................. 98.3 99.1 98.8 99.7 100.3 101.9 102.7 101.6 102.0 100.1 98.2 97.6

1958 .................. 98.4 99.0 98.9 100.0 100.5 101.7 102.5 101.5 101.4 99.7 98.3 97.9

1959 .................. 98.8 99.2 99.3 100.1 100.5 101.6 102.5 101.4 101.2 99.5 98.3 98.0

1960 .................. 98.8 99.0 99.4 100.3 100.5 101.5 102.2 101.3 100.8 99.5 98.4 98.1

1961.................. 98.8 99.0 99.3 100.3 100.5 - - - - - - -

Subsequent^ 98.8 99.0 99.3 100.3 100.5 101.5 102.2 101.3 100.8 99.5 98.4 98.1

Price indexes (1957-59 = 100)

1953 ..................

- . - - - 100.9 101.5 103.4 102.9 100.7 97.0 97.7

1954 .................. 99.9 99.5 99.3 100.2 100.6 100.7 99.5 97.6 96.7 94.2 93.8 92.7

1955 .................. 92.8 92.9 92.7 93.4 92.6 94.1 94.0 93.3 93.8 91.5 88.0 85.8

1956 .................. 84.6 84.9 84.1 85.2 86.6 88.8 90.0 90.6 91.8 91.4 89.6 88.8

1957 .................. 89.8 91.9 91.2 92.5 94.0 96.9 99.3 101.5 100.0 96.4 94.8 96.1

1958 .................. 99.9 101.5 103.7 105.1 105.7 107.3 108.1 106.7 105.0 103.9 102.9 102.4

1959 .................. 103.2 102.1 100.9 101.1 101.2 101.2 101.5 99.6 100.1 98.8 97.8 96.6

1960 .................. 96.5 96.3 97.2 99.1 99.5 100.0 100.5 100.9 99.9 99.7 99.6 100.2

1961.................. 101.2 101.4 101.0 100.2 98.5 - - - - - - -

See footnotes at end of tab les.

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Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series-Continued

Year Jan . Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec,

5. Meats

Seasonal factors

1953 .................. „ _ . . 102.3 102.4 102.2 102.6 100.6 98.8 97.4

1954 .................. 98.2 98.2 97.7 98.9 100.2 102.4 102.2 102.1 102.6 100.8 98.8 97.4

1955 .................. 98.1 98.5 97.7 98.9 100.2 102.4 102.5 102.2 103.0 100.8 98.6 97.4

1956 .................. 98.2 98.5 97.9 99.1 100.2 102.2 102.6 101.8 102.6 100.7 98.6 97.8

1957 .................. 98.3 98.6 97.9 99.2 100.0 102.1 102.7 101.7 102.5 100.7 98.6 97.8

1958 .................. 98.3 98.5 98.1 99.7 100.3 101.9 102.4 101.7 101.9 100.3 98.5 98.0

1959 .................. 98.7 98.7 98.5 99.8 100.3 101.8 102.5 101.6 101.7 100.0 98.6 98.2

1960 .................. 98.8 98.4 98.6 99.9 100.3 101.7 102.1 101.5 101.2 100.0 98.7 98.3

1961.................. 98.7 98.5 98.6 99.9 100.3 - - - - - - -

Subsequent ^ 98.7 98.5 98.6 99.9 100.3 101.7 102.1 101.5 101.2 100.0 98.7 98.3

Price indexes (1957-59 = 100)

1953 .................. . _ - - - 97.8 98.1 100.3 99.7 97.3 93.1 94.2

1954 .................. 97.1 97.0 96.9 97.6 98.8 98.5 96.8 94.5 93.8 91,7 91.2 90.4

1955 .................. 89.9 88.9 87.4 87.6 87.9 89.5 89.6 88.5 89.4. 87.9 84.1 81.7

1956 .................. 80.2 80.3 79.4 81.1 82.8 85.9 86.5 87.8 89.9 89.7 87.8 86.9

1957 .................. 87.7 89.7 88.7 90.6 92.5 95.8 98.1 100.8 99.8' 96.3 94.4 95.8

1958 .................. 99.7 101.1 102.9 105.3 105.7 107.6 108.7 107.7 106.2 105.2 104.0 103.9

1959 .................. 104.2 102.5 101.1 101.6 102.0 102.3 102.3 100.3 101.0 99.7 98.4 96.8

1960 .................. 96.0 95.7 96.5 98.9 99.7 100.3 100.5 101.4 100.3 100.5 100.3 101.0

1961.................. 102.0 101.9 101.5 100.8 99.7 - - - - - - -

6. Beef and veal

Seasonal factors

1953 ..................

- . - - - 99.8 99.8 100.5 102.3 101.9 100.5 99.9

1954 .................. 99.9 99.3 98.4 98.9 ' 99.3 99.8 99.6 100.4 102.4 . 102.1 100.6 99.8

1955 .................. 99.7 99.2 98.3 99.0 99.4 99.8 99.9 100.6 102.4 101.7 100.3 99.5

1956 .................. 99.8 99.2 98.5 99.4 99.6 100.1 100.4 100.5 101.6 101.3 100.1 99.3

1957 .................. 99.7 99.4 98.8 99.8 99.9 100.2 100.6 100.5 101.3 100.9 99.7 99.1

1958 .................. 99.7 99.5 99.2 100.4 100.6 100.6 100.8 100.4 100.8 100.3 99.3 99.0

1959 .................. 99.7 99.7 99.6 100.7 100.7 100.7 101.0 100.3 100.2 99.7 99.0 98.9

1960 .................. 99.8 99.7 99.8 100.8 100.8 100.6 100.7 99.9 99.9 99.7 99.0 98.9

1961.................. 99.8 99.8 99.8 100.8 100.8 - - - - - - -

Subsequent^ 99.8 99.8 99.8 100.8 100.8 100.6 100.7 99.9 99.9 99.7 99.0 98.9

Price indexes (1957-59 = 100)

1953 ..................

- - - . - 85.7 84.4 89.7 89.2 88.5 86.1 85.9

1954 .................. 85.9 85.2 84.5 84.3 85.2 85.8 85.2 84.3 85.2 85.5 86.4 86.1

1955 . . . ------ 86.5 86.3 85.4 85.2 83.8 84.0 83.9 83.8 84.5 84.2 82.7 81.9

1956 .................. 80.8 79.4 78.0 78.6 79.7 80.8 81.9 85.1 89.1 89.8 87.8 85.6

1957 .................. 84.3 84.3 83.6 86.3 87.9 89.4 91.6 92.8 93.1 91.9 91.7 93.5

1958 .................. 97.9 99.7 102.3 105.5 105.6 106.4 106.2 104.0 103.7 104.3 104.6 105.0

1959 .................. 106.8 107.6 107.2 107.3 107.8 107.6 108.1 106.3 106.4 106.4 106.1 105.6

1960 .................. 105.0 104.3 104.6 106.1 105.6 105.0 104.3 103.8 103.0 102.6 102.4 103.5

1961.................. 105.4 105.5 104.8 104.1 102.9 - - - - - - -

See footnotes at end of tables.

17

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series—Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. D ec.

7. Round steak

Seasonal factors

1953 ..................

- . _ . - 99.6 100.5 101.9 103.6 102.6 100.4 99.6

1954 .................. 99.6 98.1 97.2 98.0 98.6 99.6 100.3 101.8 103.7 102.8 100.6 99.5

1955 .................. 99.5 98.2 97.2 98.3 98.9 99.7 100.6 102.1 103.7 102.5 100.4 99.4

1956 .................. 99.5 98.2 97.4 98.6 99.1 100.0 101.0 101.7 102.8 102.0 100.4 99.2

1957 .................. 99.4 98.6 97.9 99.3 99.5 100.2 101.2 101.4 102.4 101.4 100.0 99.1

1958 .................. 99.3 98.6 98.2 100.0 100.1 100.5 101.1 101.0 101.6 100.8 99.6 98.8

1959 .................. 99.3 98.9 98.9 100.4 100.4 100.6 101.3 100.8 100.8 100.1 99.2 98.8

1960 .................. 99.5 99.1 99.3 100.6 100.6 100.7 101.1 100.5 100.6 100.2 99.3 98.8

1961.................. 99.4 99.3 99.3 100.6 100.6 - - - - - - -

Subsequent ^ 99.4 99.3 99.3 100.6 100.6 100.7 101.1 100.5 100.6 100.2 99.3 98.8

Price indexes (1957-59 = 100)

1953 ..................

- - - - - 86.2 86.2 92.9 92.1 91.0 87.8 87.9

1954 .................. 88.3 86.2 85.9 85.7 87.4 88.3 89.0 88.7 89.5 89.6 90.0 89.9

1955 .................. 90.4 89.7 88.6 88.2 86.8 87.8 87.9 88.7 89.4 88.3 86.1 85.1

1956 .................. 83.5 81.8 80.1 81.2 82.7 84.4 86.5 90.6 95.2 95.0 91.8 88.3

1957 .................. 87.3 86.8 85.7 89.3 91.1 92.5 95.5 96.6 96.5 94.9 94.2 95.5

1958 .................. 98.9 99.4 101.5 104.1 104.1 104.4 104.1 101.9 101.6 102.4 102.8 102.9

1959 .................. 104.8 105.2 105.2 105.8 105.7 106.1 106.9 105.1 105.8 104.6 105.0 104.4

1960 .................. 103.8 103.1 103.4 105.4 104.9 104.8 103.9 103.7 103.0 103.1 101.9 102.7

1961.................. 104.2 104.7 104.2 103.6 102.8 - - - - - - -

8. Pork

Seasonal factors

1953 ................... . . _ - . 105.2 105.6 104.1 104.5 100.5 95.3 94.8

1954 . ................ 96.4 97.3 96.4 98.8 101.2 105.4 105.4 104.0 104.2 100.6 95.6 94.9

1955 .................. 96.3 97.6 96.4 98.5 100.9 105.1 105.5 104.0 104.7 100.5 95.5 94.9

1956 .................. 96.4 97.6 96.6 98.6 100.6 104.5 105.3 103.9 104.2 100.5 96.5 95.7

1957 .................. 96.6 97.6 96.4 98.4 100.2 104.1 105.2 103.6 104.4 100.9 96.9 95.7

1958 .................. 96.6 97.4 96.7 98.9 100.2 103.5 104.7 103.8 103.5 100.4 97.2 96.6

1959 .................. 97.5 97.5 97.1 98.9 100.0 103.0 104.6 103.7 103.5 100.3 97.5 96.9

1960 .................. 97.5 97.0 97.2 99.2 100.1 102.9 104.2 103.6 102.7 100.4 97.8 97.1

1961.................. 97.5 97.1 97.1 99.1 100.1 - - - - - - -

Subsequent^ 97.5 97.1 97.1 99.1 100.1 102.9 104.2 103.6 102.7 100.4 97.8 97.1

Price indexes (1957-59 = 100)

1953 ..................

. . . . - 109.4 111.8 112.0 111.7 106.9 99.2 102.4

1954 .................. 109.2 109.4 109.6 111.2 113.0 112.1 108.5 104.7 102.5 97.7 95.8 94.2

1955 .................. 92.9 91.4 88.9 89.6 92.1 95.6 96.1 93.7 95.1 91.7 84.5 79.9

1956 .................. 77.5 79.5 78.6 82.1 84.3 90.4 91.1 91.5 92.6 91.4 88.3 88.7

1957 .................. 91.4 95.5 93.8 94.9 97.6 102.9 106.0 110.6 107.6 100.4 96.2 97.6

1958 .................. 102.1 103.2 104.5 106.4 106.7 109.7 112.0 111.6 108.3 105.5 102.2 101.5

1959 .................. 100.8 96.8 94.1 95.2 95.8 96.8 96.6 93.7 95.0 92.2 89.6 86.7

1960 .................. 85.7 85.8 87.4 91.1 93.2 95.3 96.9 99.0 97.3 98.1 97.6 98.4

1961.................. 98.9 98.6 98.1 97.3 95.7 - - - - - - -

See footnotes at end of tab les.

18

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series—Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

9. Pork chops, center cut

Seasonal factors

1953 ..................

- _ - - - 108.6 108.5 104.2 106.5 100.5 96.0 93.1

1954 .................. 94.3 95.0 93.8 97.9 101.7 108.8 108.2 104.0 106.5 100.8 95.9 92.9

1955 .................. 94.1 95.4 93.8 97.7 101.3 108.7 108.0 104.4 106.2 100.9 96.0 93.1

1956 .................. 94.3 95.5 94.2 97.7 100.8 108.2 107.4 104.5 105.4 101.2 97.1 94.1

1957 .................. 94.4 95.9 94.2 97.5 100.4 107.4 106.5 103.8 105.4 102.3 97.5 94.5

1958 .................. 95.0 96.1 95.2 98.4 99.5 105.5 106.1 104.3 104.5 101.9 98.3 95.8

1959 .................. 96.3 95.8 95.8 98.4 98.9 104.4 105.8 104.0 104.1 101.8 98.9 96.3

1960 .................. 96.6 95.4 96.0 98.7 98.7 103.9 105.5 103.4 103.9 101,9 99.1 96.4

1961.................. 96.6 95.5 95.9 98.7 98.7 - - - - - - ’ -

Subsequent ^ 96.6 95.5 95.9 98.7 98.7 103.9 105.5 103.4 103.9 101.9 99.1 96.4

Price indexes (1957-59 = 100)

1953 ..................

- . . . - 101.2 102.6 98.8 100.6 94.9 89.8 91.8

1954 .................. 99.2 95.9 96.9 100.2 102.2 105.0 104.1 99.4 98.6 90.7 91.9 87.3

1955 .................. 85.7 85.7 84.1 88.0 93.8 101.7 98.6 92.2 96.6 91.7 82.9 76.1

1956 .................. 73.8 78.7 76.6 83.0 87.9 98.2 97.7 97.0 100.0 96.7 90.2 88.4

1957 .................. 90.7 94.2 92.6 94.5 96.8 105.5 105.3 105.5 103.1 100.0 97.0 96.9

1958 .................. 99.9 100.7 101.7 103.6 103.7 109.0 110.2 107.6 106.4 105.0 103.2 101.3

1959 .................. 100.8 96.4 92.8 95.5 97.2 99.4 100.0 97.1 101.2 98.6 95.3 90.1

1960 .................. 89.2 89.1 91.9 95.8 93.9 98.1 102.6 102.7 103.1 104.4 103.2 101.8

1961.................. 102.3 100.2 99.3 99.4 97.3 - - - - - - -

10. Ham, whole

Seasonal factors

1953 ................... . _ . . 103.2 104.1 104.6 102.0 97.1 95.0 97.4

1954 .................. 98.8 98.5 98.7 99.4 101.2 103.4 104.0 104.3 101.9 97.4 95.3 97.6

1955 .................. 98.7 98.8 98.7 99.4 101.0 103.1 103.7 104.4 101.9 97.4 95.4 97.7

1956 .................. 98.9 98.8 99.1 99.6 100.8 102..6 103.1 103.6 101.1 97.9 96.5 98.4

1957 ....... 99.1 98.9 99.2 99.6 100.4 102.4 102.8 102.8 100.9 98.3 96.9 98.7

1958 .................. 99.3 99.0 . 99.7 99.6 100.7 102.1 102.2 102.2 99.9 98.1 97.3 99.6

1959 .................. 100.2 99.4 99.9 99.5 100.5 101.8 102.1 101.9 99.7 98.1 97.6 99.9

1960 .................. 100.2 99.2 100.0 99.5 100.5 101.8 102.0 101.2 99.2 98.2 97.7 100.0

1961.................. 100.3 99.4 99.9 99.4 100.6 - - - - - - -

Subsequent ^ 100.3 99.4 99.9 99.4 100.6 101.9 102.1 101.3 99.3 98.3 97.8 100.1

Price indexes (1957-59 = 100)

1953 ..................

. . - _ - 114.4 117.2 118.3 113.2 105.6 102.3 109.0

1954 .................. 114.1 112.9 112.8 113.7 115.5 113.9 111.6 110.4 106.2 100.9 99.5 100.2

1955 .................. 98.4 95.8 93.0 92.0 94.5 96.9 99.0 98.9 98.4 93.9 89.4 87.4

1956 .................. 86.5 88.0 89.9 92.4 93.4 97.7 97.6 97.8 96.2 93.6 92.8 95.3

1957 .................. 96.5 98.0 96.7 96.9 98.0 99.5 100.2 103.7 100.2 96.4 95.8 100.1

1958 .................. 103.2 103.4 106.7 106.7 105.9 107.3 108.3 107.9 103.9 103.1 102.7 104.8

1959 .................. 104.4 100.4 98.5 97.6 97.0 97.6 96.2 93.0 93.6 92.1 91.3 92.1

1960.................. 91.2 90.5 91.5 90.3 95.3 95.4 95.8 96.0 94.0 94.9 95.3 98.3

1961.................. 98.4 97.7 97.7 96.2 93.5 - - - - - •- -

See footnotes at end of tab les.

19

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series—Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. D ec.

11. Lamb, leg

Seasonal factors

1953 ................... - - . - - 104.5 102.5 101.0 99.9 99.4 99.1 97.8

1054.................. 97.7 98.1 97.5 100.3 102.3 104.8 102.3 100.5 99.8 99.3 99.3 97.8

1955 .................. 97.7 98.1 97.4 100.5 102.4 104.7 102.2 100.7 100.2 99.4 99.2 97.7

1956 .................. 98.0 98.5 97.6 100.5 102.1 104.0 102.1 100.2 100.4 99.4 99.5 98.2

1957 .................. 98.1 98.5 97.7 100.2 101.8 103.8 101.9 100.3 100.4 99.6 99.4 98.5

1958 .................. 98.4 98.4 97.8 100.2 102.1 103.6 101.7 100.0 100.2 99.5 99.4 98.4

1959 .................. 98.7 98.5 98.7 100.8 101.2 102.9 101.8 100.1 100.1 99.5 99.2 98.5

1960 .................. 98.8 98.5 99.1 100.5 100.9 102.9 101.7 99.7 99.8 99.4 99.5 98.7

1961.................. 98.7 98.3 99.1 100.7 101.0 - - - - - - -

Subsequent * 98.7 98.3 99.1 100.7 101.0 103.0 101.8 99.8 99.9 99.5 99.6 98.8

Price indexes (1957-59 = 100)

1953 ..................

. . - - - 102.6 99.4 99.7 95.0 94.8 93.5 92.3

1954 .................. 93.6 93.8 94.1 98.7 99.2 98.0 97.0 92.5 92.6 91.9 93.1 91.7

1955 .................. 91.3 91.2 90.7 91.4 89.8 92.5 91.3 90.4 90.9 90.7 89.4 88.1

1956 .................. 86.0 86.3 85.5 87.6 95.6 100.2 95.6 94.4 95.1 93.6 94.5 91.3

1957 ................... 90.7 91.4 90.0 96.1 97.5 99.0 97.4 ~97.4 97.6 96.5 96.3 97.0

1958 .................. 102.0 104.5 103.8 104.7 103.2 104.0 104.4 103.0 103.3 103.8 104.0 103.7

1959 .................. 101.2 99.2 98.9 100.8 102.5 103.5 103.1 100.5 100.4 100.3 99.9 99.2

1960 .................. 98.4 97.4 99.0 100.7 102.3 103.5 100.8 98.7 98.4 98.2 97.9 96.1

1961.................. 97.1 96.3 97.0 95.8 92.8 - - * • - •

12. Poultry, frying chickens

Seasonal factors

1953 ................... _ _ . . . 101.4 103.2 103.8 102.1 97.0 96.0 94.8

1954 .................. 96.7 99.6 102.5 102.1 100.9 101.4 103.6 103.7 101.8 97.1 95.9 94.7

1955 .................. 96.6 100.0 102.6 102.0 100.8 101.6 103.9 103.9 101.5 96.7 95.6 94.7

1956 .................. 96.9 100.2 102.9 101.7 101.1 102.2 104.4 103.4 100.7 96.2 95.6 94.2

1957 .................. 97.3 101.1 103.6 101.5 101.4 102.0 104.2 102.7 100.1 96.1 95.4 94.8

1958 .................. 98.1 101.3 103.3 101.6 101.8 101.7 104.4 102.0 99.2 95.8 95.6 95.1

1959 .................. 98.3 101.5 103.7 102.4 101.4 101.6 103.8 101.7 99.1 95.5 95.6 95.1

1960 .................. 98.7 101.4 103.9 102.7 • 101.6 101.5 103.7 101.1 99.0 95.7 95.8 95.1

1961.................. 98.7 101.5 103.7 103.1 101.5 - - - - - - -

Subsequent^ 98.7 101.5 103.7 103.1 101.5 101.5 103.7 101.1 99.0 95.7 95.8 95.1

Price indexes (1957-59 = 100)

1953 ..................

. . . - . 125.8 129.0 131.3 130.5 128.2 125.7 124.8

1954 .................. 122.1 118.9 118.7 120.8 116.4 118.1 119.7 120.1 118.0 109.9 110.9 106.9

1955 .................. 112.7 120.3 129.5 134.2 124.4 126.5 125.0 126.2 124.6 115.1 111.3 107.8

1956 .................. 108.5 110.9 110.3 108.1 108.7 106.9 112.2 107.8 104.2 101.6 99.5 98.9

1957 .................. 100.5 105.8 106.5 104.8 104.5 107.2 110.3 110.3 104.0 97.7 96.8 98.3

1958 .................. 102.0 105.6 110.6 106.1 108.2 108.5 107.9 102.8 98.1 94.8 95.0 91.4

1959 .................. 95.5 96.8 97.0 95.0 93.8 92.2 94.3 92.5 92.7 90.3 90.7 91.1

1960 .................. 94.6 96.0 98.3 97.9 95.8 95.0 97.6 95.8 94.2 91.4 92.2 91.4

1961.................. 92.7 94.6 94.8 92.3 86.6 - - - - - - -

See footnotes at end of tab les.

Digitized 

20

for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series—Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

13. Fish

Seasonal factors

1953 .................. - - - - - 99.9 99.9 99.8 99.8 99.9 99.7 100.0

1954 .................. 100.2 100.2 100.2 100.2 100.2 99.9 99.8 99.7 99.8 99.9 99.7 100.1

1955 .................. 100.3 100.3 100.2 100.1 100.3 99.8 99.8 99.8 99.7 99.8 99.7 100.0

1956 .................. 100.3 100.3 100.2 100.2 100.3 99.8 99.7 99.7 99.6 99.8 99.7 100.1

1957 .................. 100.5 100.4 100.2 100.4 100.2 99.7 99.7 99.7 99.5 99.6 99.7 100.1

1958 .................. 100.5 100.4 100.3 100.4 100.2 99.8 99.7 99.6 99.4 99.6 99.8 100.0

1959 .................. 100.5 100.6 100.2 100.4 100.2 99.8 99.7 99.6 99.4 99.5 99.8 100.0

1960 .................. 100.4 100.6 100.3 100.5 100.2 99.8 99.7 99.6 99.4 99.6 99.8 100.0

1961.................. 100.4 100.6 100.2 100.4 100.2 - - - - - - -

Subsequent * 100.4 100.6 100.2 100.4 100.2 99.8 99.7 99.6 99.4 99.6 99.8 100.0

Price iindexes (1957-59 = 100)

1953 ..................

- - - - - 95.2 95.3 95.2 95.2 95.2 95.0 94.9

1954 .................. 95.2 95.6 95.8 95.9 96.4 96.5 96.4 95.9 95.7 95.8 94.9 94.9

1955 ............ .. . 94.5 94.4 93.8 93.9 93.8 93.3 93.5 93.5 93.6 93.7 93.9 94.4

1956 . , ............ 94.7 94.0 94.4 93.8 93.7 93.3 93.0 93.3 93.4 93.6 93.6 94.1

1957 .................. 94.6 94.5 93.9 94.0 94.8 94.2 94.7 95.2 95.1 95.5 96.3 97.0

1958 .................. 98.4 99.7 101.2 101.6 101.6 101.2 101.6 101.8 102.2 . 102.9 103.4 103.6

1959 .................. 104.6 104.5 104.1 104.4 103.5 103.4 103.3 102.8 102.3 102.2 102.7 102.9

1960 .................. 103.3 103.1 103.1 103.1 103.4 103.5 103.3 103.2 103.3 103.6 104.1 104.2

1961.................. 104.7 105.5 105.0 105.2 105.5 • - - • - -

14. Fish, fresh or frozen

Seasonal factors

1953 ..................

. - - - - 99.7 99.9 99.9 99.7 99.9 99.5 100.0

1954 .................. 100.4 100.6 100.1 100.3 100.4 99.8 99.8 99.9 99.8 99.8 99.5 100.1

1955 .................. 100.5 100.6 100.0 100.3 100.5 99.8 99.7 99.9 99.7 99.7 99.5 100.0

1956 .................. 100.5 100.7 100.1 100.5 100.6 99.7 99.6 99.8 99.6 99.5 99.5 100.0

1957 .................. 100.7 100.9 100.2 100.6 100.6 99.6 99.5 99.7 99.5 99.3 99.6 100.0

1958 .................. 100.7 100.9 100.4 100.6 100.5 99.8 99.5 99.4 99.3 99.4 99.8 100.0

1959 .................. 100.6 101.0 100.5 100.6 100.5 99.7 99.5 99.3 99.2 99.4 99.8 99.9

1960 .................. 100.5 101.1 100.6 100.7 100.4 99.8 99.5 99.2 99.3 99.4 99.9 99.9

1961.................. 100.6 101.1 100.6 100.5 100.4 - - - - - - -

Subsequent^ 100.6 101.1 100.6 100.5 100.4 99.8 99.5 99.2 99.3 99*4 99.9 99.9

Price indexes (1957-59 = 100)

1953 ..................

- - - - - 92.9 93.1 92.8 92.9 93.2 92.8 92.8

1954 .................. 93.2 93.5 93.7 93.9 93.7 94.0 93.7 93.5 93.2 93.4 91.8 91.8

1955 .................. 91.2 91.1 90.0 90.2 90.1 89.2 89.4 89.6 89.3 88.4 88.7 89.4

1956 .................. 90.2 89.7 89.6 89.3 89.8 89.4 89.1 89.6 89.9 90.0 90.0 90.8

1957 .................. 91.3 90.8 89.7 90.2 91.2 90.2 90.9 91.7 91.6 92.3 93.7 94.9

1958 .................. 96.9 99.2 101.9 102.5 102.5 101.6 102.0 102.2 103.1 103.8 104.8 105.4

1959 ............ . . 107.5 108.0 107.5 107.9 106.4 106.2 105.7 105.1 104.7 104.9 105.2 105.1

1960 .................. 105.3 105.0 105.3 104.7 104.9 105.1 104.5 104.3 104.4 104.6 105.0 104.9

1961.................. 104.9 106.0 104.8 104.3 105.0 - - - - - - -

See footnotes at end of tab les.

21

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series—Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. D ec.

15. Dairy products

Seasonal factors

1953 .................. - - - - - 98.2 99.0 99.8 100.5 101.1 101.3 101.3

1954 .................. 101.0 100.7 99.8 98.8 98.4 98.3 99.1 99.8 100.4 101.1 101.3 101.3

1955 .................. 100.9 100.7 99.8 98.8 98.5 98.3 99.1 99.7 100.4 101.1 101.3 101.2

1956 .................. 100.9 100.7 99.9 98.9 98.5 98.4 99.1 99.7 100.5 101.1 101.2 101.1

1957 .................. 100.8 100.5 100.0 99.0 98.7 98.5 99.0 99.6 100.5 101.1 101.1 101.1

1958 .................. 100.8 100.5 100.1 99.1 98.8 98.5 99.1 99.6 100.5 101.0 101.0 101.0

1959 .................. 100.8 100.6 100.1 99.2 98.7 98.5 99.0 99.6 100.5 101.0 101.0 101.0

1960 .................. 100.8 100.6 100.2 99.2 98.7 98.5 99.1 99.6 100.5 101.0 100.9 101.0

1 9 6 1 .................. 100.8 100.6 100.1 99.3 98.8 - - - - - - -

Subsequent ^ 100.8 100.6 100.1 99.3 98.8 98.5 99.1 99.6 100.5 101.0 100.9 101.0

Price indexes (1957-59 = 100)

1953 ..................

- - - - - 95.0 95.7 96.4 96.8 97.3 97.6 97.4

1954 .................. 96.9 96.3 95.4 92.4 91.4 90.9 92.1 92.8 93.5 94.3 94.2 94.3

1955 .................. 94.0 93.7 93.1 92.4 91.9 92.0 92.5 93.4 94.1 95.0 95.2 95.1

1956 .................. 94.8 94.8 94.4 94.0 95.0 95.1 96.0 96.5 97.0 97.8 98.1 98.3

1957 .................. 98.2 98.1 97.8 97.6 97.2 97.2 97.6 98.5 99.9 100.9 101.1 101.2

1958 .................. 101.2 101.1 100.8 99.4 98.8 98.7 99.3 99.8 100.8 101.1 101.1 101.0

1959 .................. 100.8 100.7 100.5 99.7 99.5 99.2 100.1 100.8 102.0 102.6 102.5 103.1

1960 .................. 102.9 102.9 102.8 101.9 101.6 101.6 102.3 ‘ 103.0 103.8 104.6 105.0 105.4

1961.................. 105.2 105.1 104.7 104.2 103.8 • - * _ - • -

16. Milk, fresh (grocery)

Seasonal factors

1953 ...............

- - - - - 97.2 98.8 100.1 100.8 101.6 101.9 101.8

1954 ............... 101.3 100.8 99.6 98.6 97.5 97.3 98.8 100.1 100.7 101.6 101.8 101.8

1955 ............... 101.3 100.8 99.6 98.6 97.6 97.4 98.7 100.0 100.7 101.6 101.8 101.7

1956 ............... 101.2 100.8 99.7 98.6 97.7 97.6 98.7 99.8 100.7 101.6 101.8 101.6

1957 ............... 101.1 100.7 99.9 98.7 97.9 97.8 98.7 99.7 100.7 101.5 101.7 101.5

1958 ............... 101.1 100.8 100.1 98.7 98.0 97.8 98.8 99.6 100.8 101.4 101.5 101.4

1959 ............... 101.0 100.8 100.3 98.7 98.2 97.8 98.8 99.6 100.8 101.4 101.5 101.4

1960 ............... 101.0 100.8 100.4 98.8 98.2 97.8 98.9 99.7 100.8 101.3 101.5 101.4

1961............... 101.0 100.8 100.3 98.8 98.2 - - - - - -

Subsequent^ 101.0 100.8 100.3 98.8 98.2 97.8 98.9 99.7 100.8 101.3 101.5 101.4

Price indexes (1957-59= 100)

1953 ...............

- - - - - 91.4 92.7 93.9 94.6 95.1 95,6 95.4

1954 ............... 94.7 93.8 92.3 90.5 89.4 88.6 90.9 92.1 92.9 93.6 93.5 93.6

1955 ............... 93.1 92.8 91.7 90.8 89.9 90.0 91.0 92.6 93.0 94.1 94.5 94.2

1956 ............... 93.8 93.6 93.1 92.2 93.6 93.7 95.1 95.6 96.5 97.5 97.9 98.1

1957 ............... 98.1 98.0 97.2 97.1 96.0 95.6 96.2 97.8 100.0 101.3 101.9 102.0

1958 ............... 101.7 101.4 100.8 99.0 98.0 97.9 98.9 99.7 101.0 101.4 101.8 101.5

1959 ............... 101.1 101.2 101.0 99.7 99.2 98.8 100.1 101.2 102.6 103.2 103.1 103.6

1960 ............... 103.8 103.8 103.8 102.0 101.5 101.5 102.7 103.8 104.6 105.4 105.4 105.6

1961............... 104.9 104.7 104.4 103.2 102.7 - - - - - - *

See footnotes at end of tables.

22

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series-Continued

Year Jan . Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

17. Butter

Seasonal factors

1953 ..................

_ - - - - 98.4 98.6 98.9 99.5 100.9 101.2 101.6

1954 .................. 101.4 101.4 99.9 99.5 98.4 98.5 98.6 98.9 99.4 100.8 101.3 101.6

1955 .................. 101.3 101.1 99.9 99.5 98.5 98.6 98.7 98.9 99.5 100.9 101.2 101.5

1956 .................. 101.1 101.0 100.0 99.4 98.6 98.7 98.7 98.9 99.8 101.1 101.1 101.3

1957 .................. 100.9 100.5 100.0 99.3 99.1 98.8 98.7 98.8 100.2 101.0 101.1 101.5

1958 .................. 100.6 100.2 100.0 99.3 99.2 99.0 98.8 98.8 100.2 101.0 101.2 101.4

1959 .................. 100.5 100.1 99.9 99.4 99.1 99.0 98.7 98.8 100.4 101.1 101.1 101.5

1960 .................. 100.4 100.1 99.9 99.4 99.1 99.0 98.8 98.8 100.4 101.1 101.2 101.6

1961.................. 100.4 100.0 99.7 99.5 99.2 - - - - - - -

Subsequent 1 100.4 100.0 99.7 .99.5 99.2 99.0 98.8 98.8 100.4 101.1 101.2 101.6

Price iindexes (1957-59 = 100)

1953 ..................

. _ - . 104.1 104.2 104.2 104.6 105.3 106.6 106.1

1954 .................. 105.8 105.4 104.4 93.2 92.7 92.3 92.3 92.3 92.4 95.3 95.1 96.3

1955 .................. 95.4 94.8 94.7 94.4 93.9 93.9 93.7 94.1 94.7 95.0 94.8 94.9

1956 .................. 94.9 94.9 94.8 94.7 96.1 96.3 96.3 96.5 96.9 98.4 99.9 100.2

1957 .................. 99.6 99.4 99.4 99.2 99.3 98.9 98.7 98.7 100.0 101.1 100.5 100.4

1958 .................. 100.4 100.4 100.4 99.0 98.6 98.5 98.5 98.5 100.0 100.2 99.8 99.7

1959 .................. 100.1 99.9 99.7 99.7 99.4 99.4 99.5 99.6 102.8 103.1 103.6 105.3

1960 .................. 101.1 100.0 99.9 99.5 99.7 99.5 99.3 99.5 100.6 102.1 102.8 102.9

1961.................. 102.8 103.0 102.5 102.6 102.4 - - - - - - -

18. Cheese, American process

Seasonal factors

1953 ...............

_ . - . 99.7 99.8 99.9 99.8 100.1 99.9 100.1

1954 ............... 100.1 100.3 100.4 99.8 99.8 99.7 99.8 99.9 99.8 100.0 99.9 100.1

1955 ............... 100.1 100.2 100.4 99.9 99.8 99.8 99.8 99.9 99.8 100.0 99.9 100.1

1956 ............... 100.1 100.2 100.4 99.9 99.9 99.9 99.8 99.9 99.8 99.9 99.9 100.1

1957 ............... 100.1 100.2 100.4 100.1 99.9 99.9 99.8 99.8 99.7 99.8 99.9 100.1

1958 ............... 100.4 100.4 100.4 100.2 100.0 99.9 99.8 99.6 99.5 99.6 99.9 100.1

1959 ............... 100.6 100.6 100.5 100.1 99.9 99.9 99.9 99.5 99.4 99.6 99.9 100.1

1960 ............... 100.8 100.8 100.6 100.1 99.9 99.9 99.9 99.4 99.4 99.6 99.9 100.2

1961............... 100.8 100.8 100.5 100.0 99.8 - - - - - - -

Subsequent1 100.8 100.8 100.5 100.0 99.8 99.8 99.8 99.3 99.3 99.5 99.8 100.1

Price indexes (1957-59= 100)

1953 ...............

. _ . _ - 103.3 103.2 102.8 102.6 103.1 102.4 102.7

1954 ............... 102.5 102.0 101.1 98.8 98.2 97.5 97.3 97.3 97.4 97.5 97.4 97.5

1955 ............... 97.5 98.2 99.0 98.7 98.8 99.1 98.9 99.2 98.8 98.8 99.0 98.8

1956 ............... 98.7 98.8 98.8 98.9 99.2 99.1 99.2 99.5 99.4 99.2 99.2 99.5

1957 ............... 99*5 99.5 99.8 99.6 99.6 100.0 99.9 100.1 100.2 100.1 100.1 100.2

1958 .......... 100.5 100.4 100.5 100.5 100.1 100.1 100.0 99.8 99.7 99.9 99.8 99.9

1959 ............... 100.2 100.1 99.9 99.9 99.9 99.9 100.3 99.8 99.8 100.0 100.0 100.2

1960 .......... .. . 101.8 102.2 102.6 102.7 102.5 102.7 103.0 102.8 103.7 105.4 108.2 110.0

1961............... 112.0 112 A 110.2 110.3 110.3 - - - - - - -

See footnotes at end of tab les.

23

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series—Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

19. Fruits and vegetables

Seasonal factors

1953 ..................

- - - - - 106.9 107.0 100.5 96.5 96.4 96.0 96.6

1954 .................. 98.3 97.7 98.6 101.3 104.4 107.3 107.1 100.5 96.4 96.1 96.0 96.8

1955 . ............... 98.3 97.8 98.5 101.2 104.3 107.3 107.1 100.6 96.4 96.1 96.0 96.3

1956 .................. 98.2 97.8 98.9 101.7 104.4 106.7 106.6 100.3 96.6 96.0 96.2 96.1

1957 .................. 98.0 98.0 99.1 101.9 104.1 107.2 106.1 100.0 96.6 96.0 96.1 96.4

1958 .................. 98.2 98.3 99.1 101.9 103.9 107.4 105.4 100.1 96.5 96.2 96.4 96.6

1959 .................. . 98.1 98.4 99.2 102.3 103.8 107.1 105.2 100.0 96.8 96.6 96.5 96.5

1960 .................. 98.0 98.4 99.2 102.4 103.7 107.1 104.9 99.6 96.7 96.5 96.6 97.0

1961.................. 98.1 98.6 99.0 102.1 103.5 - - - - - - -

Subsequent ^ 98.1 98.6 99.0 102.1 103.5 107.2 105.0 99.7 96.8 96.6 96.7 97.1

Price indexes (1957-59 = 100)

1953 ..................

- - - - - 98.5 95.6 91.2 86.2 87.1 86.9 88.3

1954 .................. 89.6 87.4 87.2 89.0 92.7 94.7 97.2 92.8 89.4 89.9 88.7 87.7

1955 .................. 89.5 89.6 90.6 95.1 97.2 96.7 98.6 90.0 89.2 87.8 88.2 89.6

1956 .................. 91.1 91.7 92.9 94.4 98.3 106.3 109.4 97.7 92.9 92.2 93.7 95.0

1957 .................. 94.6 94.3 93.9 96.0 99.1 102.6 102.7 98.1 92.9 92.6 92.7 92.2

1958 .................. 98.6 100.6 105.7 110.5 111.2 108.7 106.7 101.1 97.7 97.9 98.0 97.2

1959 .................. 98.5 98.1 97.7 100.0 101.6 108.8 105.8 101.6 100.4 100.7 99.8 101.5

1960 .................. 101.7 101.9 101.1 105.1 107.5 110.1 108.7 103.0 100.8 101.0 102.1 102.2

1961.................. 102.0 102.9 103.4 106.3 107.0 - - - - - - -

20. Fresh fruits and vegetables

Seasonal factors

1953 ..................

- - - - - 111.0 110.8 100.6 94.2 93.8 93.5 94.5

1954 ............... 97.3 96.6 98.1 102.3 107.1 111.6 110.9 100.4 94.0 93.5 93.6 94.8

1955 ............... 97.3 96.8 98.1 102.2 106.9 111.7 110.9 100.8 94.1 93.5 93.6 94.4

1956 ............... 97.3 96.8 98.7 102.9 107.1 110.5 110.2 100.3 94.5 93.7 94.1 94.1

1957 ............... 97.1 • 97.3 98.9 103.1 106.6 111.4 109.4 99.8 94.6 93.7 93.9 94.6

1958 ............... 97.2 97.6 98.8 102.9 106.1 111.5 108.2 99.8 94.3 94.0 94.3 94.9

1959 ............... 97.2 97.7 98.9 103.5 105.9 110.9 107.8 99.7 94.7 94.5 94.5 94.8

1960 ............... 97.2 97.8 99.0 103.7 105.9 110.9 107.5 99.2 94.7 94.5 94.7 95.5

1961............... 97.3 98.1 98.6 103.3 105.4 - - - - - - -

Subsequent^ 97.3 98.1 98.6 103.3 105.4 111.0 107.6 99.3 94.8 94.6 94.8 95.6

Price indexes (1957-59= 100)

1953 ...............

- - - - - 101.8 97.2 89.6 81.6 82.9 82.8 85.5

1954 ............... 87.6 84.5 84.9 87.9 93.3 95.9 99.5 92.5 87.3 88.0 86.4 84.9

1955 ............... 87.7 88.2 89.8 96.6 100.0 98.9 101.6 88.0 86.2 84.0 84.4 86.5

1956 ............... 88.9 89.5 91.2 93.6 99.5 111.8 116.4 98.0 90.6 89.5 92.1 94.4

1957 ............... 94.1 93.7 93.3 96.9 101.8 107.5 107.8 100.8 92.5 92.1 92.2 91.4

1958 ............... 100.4 103.1 110.5 117.1 117.6 112.9 109.4 100.2 94.5 94.5 94.4 92.9

1959 ............... 95.0 94.6 93.9 97.3 99.8 110.7 105.6 99.1 97.5 98.4 97.2 100.5

1960 ............... 101.9 102.5 101.4 107.6 111.4 115.3 113.1 104.1 100.5 100.5 101.9 101.6

1961............... 101.0 101.6 101.9 106.3 107.5 - - - - - - -

See footnotes at end of tables.

24

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series—Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

21. Apples

Seasonal factors

1953 .......

- . - _ 125.2 128.3 106.2 92.6 82.8 83.8 87.0

1954 ............... 89.7 93.0 95.2 102.8 113.6 125.1 127.6 106.5 93.4 82.8 83.6 87.1

1955 ............... 89.4 92.6 94.6 102.6 113.9 126.2 129.0 105.7 93.3 82.3 83.1 86.9

1956 ............... 89.4 92.4* 94.2 102.0 114.0 128.4 130.3 105.6 94.0 81.8 81.7 86.5

1957 ............... 89.0 91.8 94.0 102.2 114.1 128.4 133.2 104.1 94.5 81.5 80.9 85.9

1958 ............... 88.8 91.4 93.9 102.3 113.7 129.8 133.5 105.0 93.9 81.5 80.9 85.8

1959 ...............

88.4 91.0 94.3 102.2 113.0 130.3 135.0 104.8 93.5 81.5 80.8 85.6

I960 ...............

88.5 91.0 94.7 102.3 112.5 129.7 134.5 105.4 93.7 81.7 80.7 85.4

1961...............

88.3 90.9 95.0 102.8 112.4 - - - - - • •

Subsequent ^ 88.3 90.9 95.0 102.8 112.4 129.6 134.4 105.4 93.7 81.7 80.7 85.4

Price indexes (1957-59= 100)

1953 ............... _ 1 2 6 .4 . 128.3 104.7 89.5 84.4 87.8 89.8

1954 ............... 92.2 95.4 98.2 103.1 109.2 119.8 116.8 106.5 92.2 83.2 84.6 86.9

1955 ............... 88.8 91.9 92.7 99.5 - 111.2 121.6 132.4 102.7 91.6 79.0 78.2 82.1

1956 ............... 86.2 88.8 90.4 98.2 107.8 117.8 119.3 104.0 97.3 84.7 86.6 93.8

1957 ............... 96.0 100.1 102.3 114.1 130.5 148.3 148.0 (2) 94.1 79.6 79.5 84.3

1958 ............... 86.7 89.4 92.6 101.3 119.8 146.9 (2) (2) 96.6 82.2 78.4 83.1

1959 ............... 86.1 88.6 92.7 99.6 103.2 111.5 109.0 105.3 93.6 82.7 82.0 87.8

1960 ............... 91.3 94.4 98.7 108.4 120.4 142.6 149.2 (2) 102.5 * 92.3 93.4 97.9

1961...............

102.0 105.3 111.6 117.2 130.0 “ “ • • *

22. Bananas

Seasonal factors

1953

1954

1955

1956

1957

1958

1959

1960

1961

Subsequent 1

1953

1954

1955

1956

1957

1958

1959

1960

1961

_ 102.0 102.0 100.2 100.4 101.8 102.4 99.3

99.5 100.3 98.8 95.6 98.0 102.2 101.6 100.0 100.6 101.6 102.4 99.8

99.8 100.3 98.3 95.6 97.8 102.1 ; 101.4 100.6 100.6 102.3 102.5 98.9

99.9 100.5 98.5 95.0 97.9 101.9 100.8 100.5 100.3 103.0 103.1 99.2

99.9 100.3 98.2 94.7 98.6 100.6 99.3 101.1 100.8 104.9 102.5 98.6

100.7 100.6 98.2 93.9 98.3 100.9 97.7 100.7 100.8 105.7 102.2 100.0

101.0 100.0 98.6 94.8 97.3 100.7 97.6 100.8 100.8 106.7 102.1 99.8

100.9 99.8 99.1 94.7 97.4 100.4 96.9 100.3 100.9 106.5 101.8 100.8

101.1 99.6 98.9 95.0 97.1 - - - - - - -

101.1 99.6 98.9 95.0 97.1 100.5 97.0 100.4 101.0 106.6 101.9 100.9

Price indexes (1957-59= 100)

. - . - - 97.4 97.3 98.1 97.6 98.0 98.2 97.5

96.2 96.7 96.8 94.5 93.0 104.1 103.4 93.5 95.4 97.4 100.8 97.3

96.6 97.2 98.2 98.3 98.0 98.4 100.3 99.8 99.4 99.3 97.9 94.9

97.7 100.1 96.2 89.9 98.3 99.6 94.7 96.5 98.0 99.3 100.8 100.6

99.9 98.7 94.6 94.3 96.9 105.1 105.0 108.1 103.7 107.2 102.6 92.9

98.1 100.0 98.0 92.0 97.1 97.5 96.5 110.7 99.3 106.0 106.8 103.6

100.0 99.2 98.0 94.6 98.6 97.6 96.5 97.8 99.8 109.1‘. 99.4 95.3

100.2 96.1 94.1 88.8 88.9 92.9 84.9 89.4 91.5 95.3 90.0 95.5

93.5 91.7 92.8 89.1 88.8 - - - - - - -

See footnotes at end of tables.

Digitized for FRASER 

25

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series—Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. D ec.

23. Oranges

Seasonal factors

1953 ............... — - . - . 102.3 107.3 110.5 112.4 112.7 97.6 94.8

1954 ............... 91.2 89.5 90.6 94.1 97.0 102.2 107.6 109.9 112.4 113.2 97.5 94.4

1955 ............... 90.9 89.8 91.2 94.2 97.1 101.9 107.2 109.7 112.5 113.0 98.2 93.9

1956 ............... 91.3 90.3 91.2 95.2 96.7 100.0 105.8 108.8 113.0 114.1 100.1 93.0

1957 ............... 90.7 90.5 92.0 95.4 97.2 101.4 105.7 107.3 111.3 112.0 101.7 94.5

1958 ............... 91.8 91.1 91.6 95.8 96.5 101.0 105.4 106.7 110.7 111.5 104.1 93.9

1959 ............... 91.0 90.9 92.0 97.3 96.9 100.7 104.4 106.7 110.0 110.7 104.9 94.1

1960 ............... 91.2 90.7 91.8 97.6 97.0 100.8 104.6 106.3 109.6 110.7 105.5 94.6

1961............... 90.6 90.5 92.0 97.0 97.3 - - - - - - -

Subsequent ^ 90.6 90.5 92.0 97.0 97.3 100.8 104.6 106.3 109.6 110.7 105.5 94.6

Price indexes (1957-59= 100)

1953 ............... . _ - - - 80.0 79.7 76.3 76.3 74.6 71.2 73.0

1954 ............... 71.4 68.9 68.3 74.2 77.9 81.2 89.2 100.4 102.1 102.2 77.9 71.5.

1955 ............... 67.6 66.2 71.6 74.2 77.5 78.6 82.7 85.7 88.1 90.3 79.7 79.8

1956 ............... 75.1 75.5 75.0 75.4 82.0 90.2 98.4 96.2 102.1 104.1 89.7 84.6

1957 ............... 81.4 82.2 82.1 82.3 81.4 83.6 87.4 92.1 96.1 97.9 91.9 85.9

1958 ............... 94.7 98.1 101.9 116.6 111.0 114.1 119.9 120.1 130.6 130.7 123.6 104.6

1959 ............... 96.0 91.5 91.2 92.6 97.3 104.0 101.9 104.1 104.0 105.2 101.1 99.9

1960 ............... 96.3 94.8 97.0 103.2 103.2 108.3 117.3 122.8 126.2 130.8 130.3 111.3

1961............... 105.7 110.3 112.4 119.7 117.7 - - - - - - -

24. Lemons3

Seasonal factors

1953 ................... _ _ _ _ _ _ 101.6 103.1

1954 ............... 105.0 102.4 100.0 99.4 99.1 95.8 98.0 96.7 98.4 100.2 101.6 102.9

1955 ............... 105.1 102.9 99.9 99.2 99.2 95.8 97.7 96.9 98.5 99.7 102.2 103.4 .

1956 ............... 105.0 102.5 99.9 99.1 99.1 95.7 97.3 96.7 98.4 99.8 102.7 103.8

1957 ............... 105.2 102.8 100.0 99.2 98.7 95.7 96.3 96.3 99.3 99.7 102.8 104.0

1958 ............... 105.3 102.8 100.5 98.9 98.5 95.5 95.9 95.8 99.2 100.3 103.3 104.6

1959 ............... 104.7 102.8 100.8 98.9 98.7 95.7 95.0 95.7 99.1 100.4 103.5 105.1

1960 ............... 104.6 102.3 101.0 99.1 98.4 95.6 95.1 95.4 99.3 100.9 103.1 105.0

1961............... 104.7 102.6 101.0 99.1 98.3 - - - - - - -

Subsequent^ 104.7 102.6 101.0 99.1 98.3 95.6 95.1 95.4 99.3 100.9 103.1 105.0

Price indexes (1957-59= 100)

1953 ............... _ _ _ . . . - . . 100.0 100.0

1954 ............... 100.8 99.0 97.2 95.7 97.4 93.2 95.0 92.3 91.9 98.0 99.2 98.1

1955 ............... 98.5 97.3 95.8 96.8 95.0 92.5 92.2 92.8 94.3 92.8 95.6 100.9

1956 ............... 103.0 97.3 94.2 94.3 93.1 92.4 100.5 98.6 104.7 106.4 107.9 108.3

1957 ............... 111.4 111.2 104.0 100.7 102.2 96.5 94.8 96.4 95.8 95.0 103.0 103.4

1958 ............... 102.4 100.0 100.8 100.0 101.1 97.2 95.4 94.9 95.9 97.5 98.7 100.0

1959 ............... 103.2 101.3 100.0 ,99.5 97.4 96.2 95.1 94.9 102.5 103.5 105.0 104.2

1960 ............... 103.6 102.0 100.9 97.8 97.2 95.4 96.3 99.5 105.4 109.4 113.5 120.6

1961............... 116.6 113.1 111.2 108.3 106.9 - - - - - - -

See footnotes at end of tab les.

26

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series—Continued

Year Jan . Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

2 5 . P e a c h e s 4

Seasonal factors

1 9 5 4 ..................

. . . . . . 115.5 90.1 94.4 . - .

1 9 5 5 .................. - - - - - - 115.1 90.2 94.8 - - -

195 6.................. - - - - - - 113.9 90.8 95.3 - - -

19 5 7.................. - - - - - - 110.9 91.3 97.8 - - -

1 9 5 8 ..................

- - - - - - 109.6 91.5 99.5 - - -

195 9..................

- - - - - - 106.2 93.0 100.8 - - -

196 0.................. - - - - - - 104.8 93.6 101.5 - - -

1 9 6 1 .................. - - - - • 104.3 93.7 102.0 • -

Subsequent^ - - - - - - 104.3 93.7 102.0 - - -

Price iindexes (1957-59= 100)

1954 .......................................

- - - - - - 112.5 81.9 85.3 - - -

1955 .......................................

- - - - - - 184.3 109.2 91.3 - - -

1956 ....................................... - - - - - - 107.4 86.4 87.9 - - -

1957 ....................................... - - - - - - 119.1 96.0 102.9 * - -

1958 ............... - - - - - - 100.4 86.3 89.3 - - -

1959 ....................................... - - - - - - 107.6 92.4 106.0 - - -

1960 ....................................... - - - - - - 102.1 87.6 102.4 - - -

1961.......................................

' '

97.4 99.7 99.8

26. Strawberries4

S easo n al facto rs

1954 .................... _ _ _ 118.0 89.9 92.1 _ _ „ . _ .

1955 .................... - - - 118.5 89.8 91.6 - > - - - -

1956 .................... - - - 118.8 90.2 91.0 - - - - - -

1957 .................... - - - 118.2 92.3 89.6 - - - - - -

1958 .................... - - - 118.0 93.9 88.1 - - - - - -

1959 .................... . - - 11 7 .0 96.1 86.9 - - - - - -

1960 .................... - - - 116.1 97.3 86.6 - - - - - -

196 1 - - - 115.9 97.6 86.5 - - - - - -

Subsequent^ - - - 115.9 97.6 86.5 - - - - - -

P rice indexes (1957-59 = 100)

1954 .................... _ (2) 108.6 115.6 _ . - -

1955 .................... - - - 125.4 105.2 102.7 - - - - -

1956 ....................

- - - 142.4 99.3 106.9 - - - - -

1957 .................... - - - (2) 94.9 93.2 - - - - -

1958 .................... - - - (2) 111.0 89.4 - - - - -

1959 ............. - - - 116.3 100.0 101.3 - - - - -

1960 .................... - - - 1 2 9 .6 118.8 98.1 - - - - -

1961.................. “ 132.6 106.6 .9 7 .2 *

*

See footnotes at end of tab les.

27

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series—Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

27. Grapes, seedless 4,6

Seasonal factors

1955.................. . _ . . _ . 136.3 96.3 81.9 86.8 98.7 -

1956 .................. - - - - - - 134.0 96.0 82.2 88.4 99.3 -

1957 .................. - - - - - - 133.2 95.3 82.8 89.6 99.2 -

1958 .................. - - - - - - 130.1 93.5 84.4 92.6 99.4 -

1959 .................. - - - - - - 129.4 93.6 85.2 93.3 98.4 -

1960 .................. - - - - - - 127.4 93.2 85.6 94.4 99.3 -

1961 . . ________ «• * * 129.0 93.2 85.9 93.5 98.5

Subsequent ® - - - - - - 129.0 93.2 85.9 93.5 98.5 -

Price iindexes (1957-59 = 100)

1955 .................. _ . . _ 129.8 89.9 68.0 68.4 82.3 -

1956 .................. - - - - - - 115.9 83.5 75.6 82.3 (2) -

1957 .................. - - - - - - 141.3 95.9 82.0 84.6 89.9 -

1958 .................. - - - - - - 121.0 96.5 87.2 103.4 (2) -

1959 .................. - * - - • - 128.4 90.2 84.9 93.8 (2) -

1960 .................. - - - - - - 126.4 90.2 84.0 91.9 95.1 -

1961.................. 130.8 121.8 90.6 96.5 104.8

28. Watermelons 4

Seasonal factors

1954 .................. _ . . . 127.7 95.3 77.0 _ . . _

1955 .................. - - - - - 126.2 95.8 78.0 - - - -

1956 .................. - - - - - 127.2 95.4 77.4 - - - -

1957 .................. - - - - - 128.2 94.5 77.2 - - - -

1958 .................. - - - - - 131.0 92.5 76.5 - - - -

1959 .................. - - - - - 133.3 89.7 77.1 - - -

1960 .................. - - - - - 136.0 87.9 76.1 - - - -

1 9 6 1 .................. • - - • 135.8 87.2 77.0 —

Subsequent ^ - - - - 135.8 87.2 77.0 - . _ .

Price indexes (1957-59 = 100)

1954 .................. . . 92.8 82.7 82.6

1955 .................. _ _ 124.5 91.0 73.8 . _ - .

1956 .................. - . • _ 119.0 92.7 75.0 - - - -

1957 .................. - - - - - 124.3 103.8 87.5 - - - -

1958 .................. - - - - - 122.1 83.7 66.0 - - - -

1959 .................. - - - - - 140.3 93.7 79.0 - - - -

1960 .................. - - - - - 142.2 84.1 72.0 - - - -

1 9 6 1 .................. — - 103.7 98.8 82.5

See footnotes at end of tab les.

28

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series—Continued

Year Jan . Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. D ec.

29. Potatoes

Seasonal factors

1953 ..................

- - - - - 120.3 115.8 102.9 92.2 88.6 89.6 89.4

1954 .................. 91.6 93.6 93.5 105.7 116.5 122.1 116.4 103.9 91.1 87.3 88.9 89.3

1955 .................. 92.3 94.4 94.1 105.6 116.3 121.0 115.6 103.7 91.4 87.5 88.8 89.1

1956 .................. 92.0 93.8 96.1 107.8 115.9 120.0 115.7 103.8 90.8 86.4 88.5 89.6

1957 .................. 93.2 94.2 96.9 108.1 116.2 117.4 115.7 102.5 89.9 86.6 88.9 89.9

1958 .................. 93.9 95.4 98.6 108.1 113.2 115.4 115.8 103.3 90.1 86.4 88.8 90.9

1959 .................. 94.4 96.2 99.8 108.1 111.9 112.9 115.5 101.9 90.8 87.4 89.6 91.3

1960 .................. 94.1 95.8 99.6 108.4 112.0 113.4 115.8 101.8 90.1 86.9 89.8 91.9

1961.................. 95.2 97.2 98.9 106.6 111.5 - - - - - - -

Subsequent ^ 95.2 97,2 98.9 106.6 111.5 113.5 115.9 101.9 90.2 87.0 89.9 92.0

Price iindexes (1957-59 = 100)

1953 ..................

. - - - - 89.1 87.0 80.9 76.5 76.4 75.6 74.7

1954 .................. 73.7 74.6 70.6 73.2 81.4 103.5 111.9 102.0 90.2 83.4 85.2 85.2

1955 .................. 87.0 89.3 90.2 116.7 133.8 118.6 97.9 79.8 74.1 73.6 77.7 78.8

1956 .................. 85.4 90.1 94.0 109.7 130.8 151.5 189.9 127.2 94.6 84.8 86.4 87.9

1957 .................. 92.4 92.1 90.1 91.5 93.9 96.5 99.3 96.4 92.3 92.0 93.0 95.0

1958 .................. 97.8 100.5 120.2 135.4 125.2 111.8 110.7 97.0 85.8 81.1 82.8 84.7

1959 .................. 88.9 89.1 86.4 91.2 103.2 146.7 133.0 110.8 95.9 95.6 99.9 102.0

1960 .................. 107.9 112.7 113.9 131.5 136.8 133.0 127.0 115.7 108.5 105.6 109.5 111.3

1961.................. 108.9 107.9 107.2 108.3 110.1 • * - “ • _

30. Sweetpotatoes

Seasonal factors

1953 ................... - . - - - 116.2 123.8 108.9 92.1 83.0 84.0 90.0

1954 .................. 95.4 97.2 99.9 101.7 107.9 115.4 123.5 109.5 92.6 83.2 83.9 89.9

1955 .................. 95.2 97.3 99.6 101.5 108.1 115.3 123.2 110.7 92.1 83.7 83.7 89.9

1956 .................. 95.3 97.0 99.5 101.5 107.7 113.7 122.0 113.5 91.8 84.3 83.9 89.6

1957 .................. 95.0 97.2 99.7 101.8 107.2 112.5 119.2 115.7 92.4 85.1 84.4 90.0

1958 .................. 95.3 97.2 99.3 100.9 105.9 111.2 119.1 117.7 93.3 85.3 84.9 90.0

1959 .................. 95.1 97.3 99.2 100.5 105.2 111.2 118.7 118.4 93.2 85.5 85.5 90.2

1960 .................. 95.2 97.3 99.6 100.5 104.5 110.4 118.3 118.7 94.1 85.5 85.9 90.3

1961.................. 95.0 97.6 99.5 100.2 104.3 - - - - - - -

Subsequent^ 95.0 97.6 99.5 100.2 104.3 110.5 118.4 118.8 94.1 85.5 85.9 90.3

Price indexes (1957-59 = 100)

1953 ..................

. . - 137.0 137.0 123.7 86.8 80.2 82.0 86.3

1954 .................. 89.4 87.8 89.0 91.4 99.0 109.7 119.3 98.6 83.6 76.8 77.0 83.7

1955 . . --------- 90.2 97.3 102.1 103.7 107.5 107.6 111.0 98.0 81.8 73.7 73.9 77.7

1956 .................. 80.9 80.4 81.6 81.4 85.6 92.7 105.3 103.6 89.5 81.4 80.3 86.3

1957 .................. 90.0 92.5 92.9 97.9 109.4 118.0 126.6 118.6 90.0 85.8 83.1 91.6

1958 .................. 102.1 105.3 112.3 116.4 120.5 121.4 125.7 126.8 93.4 84.9 86.8 90.2

1959 .................. 94.1 95.1 96.3 95.4 96.3 101.2 102.4 106.5 87.0 80.7 79.8 83.2

1960 .................. 85.5 87.1 87.0 87.1 92.0 98.9 (2) 116.6 96.7 86.1 88.3 92.6

1961.................. 98.6 103.1 107.6 110.0 116.0 - - - - - - -

See footnotes at end of tab les.

29

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series—Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

31. Onions

Seasonal factors

1953 .................. „ . . - . 114.6 115.^ 106.1 95.7 91.0 92.4 92.9

1954 .................. 93.0 93.6 92.3 102.7 109.9 116.4 115.3 109.7 94.8 89.4 90.4 92.3

1955 .................. 93.1 94.8 92.2 102.2 111.8 118.6 115.4 107.8 93.5 89.0 90.0 91.7

1956 .................. 92.4 94.3 94.7 106.8 112.1 119.7 114.0 107.7 92.9 87.9 88.0 89.5

1957 .................. 91.0 93.6 100.5 113.5 113.6 116.0 111.2 105.4 91.8 87.2 87.1 89.0

1958 .................. 91.9 94.2 102.2 115.0 115.1 115.2 109.8 105.8 91.3 86.1 85.9 87.9

1959 .................. 9 i .i 96.3 105.0 117.3 116.3 111.9 107.9 101.2 91.7 86.9 86.9 87.6

1960 .................. 91.2 95.9 106.7 118.9 H 4.9 109.9 107.2 103.2 92.3 86.5 86.4 87.5

1961 . ............... 91.8 97.5 106.3 115.9 115.3 - - - - - - -

Subsequent ^ 91.8 97.5 106.3 115.9 115.3 109.9 107.2 103.2 92.3 86.5 86.4 87.5

Price indexes (1957-59 = 100)

1953 ..................

_ - . . - 80.1 79.7 70.4 62.7 59.3 60.2 60.3

1954 .................. 59.8 59.6 56.8 63.9 74.7 80.5 80.1 79.0 74.0 70.5 74.2, 74.9

1955 .................. 75.2 74.7 71.9 82.1 82.8 82.4 84.1 75.8 76.8 77.9 80.1 81.3

1956 .................. 80.6 77.3 76.1 77.9 89.2 12 2.6 154.2 132.0 87.7 73.8 70.0 74.4

1957 .................. 75.7 84.8 82.2 96.6 120.0 126.9 112.4 91.1 80.0 79.3 80.2 81.8

1958 .................. 83.7 87.3 106.5 .132.1 109.9 101.7 99.2 92.0 88.0 87.3 88.8 91.9

1959 .................. 104.7 114.1 153.1 164.8 138.5 106.9 99.7 96.4 89.2 83.6 84.1 84.4

1960 .................. 86.2 82.0 78.6 88.3 98.4 97.3 99.3 98.6 90.4 84.2 83.9 83.3

1961.................. 84.0 95.4 94.5 95.6 99.5 - - - - - -■ -

32. Carrots

Seasonal factors

1953 ..................

. _ _ . 100.6 99.3 98.7 102.5 105.3 105.6 106.9

1954 .................. 106.1 96.1 92.8 91.2 95.2 100.7 99.7 99.1 102.7 104.8 105.2 106.7

1955 .................. 106.2 96.3 93.0 91.1 95.5 100.4 99.5 99.7 103.2 103.9 104.9 106.3

1956 .................. 106.5 96.9 93.8 90.8 95.2 100.3 100.8 101.6 103.7 102.5 103.0 104.9

1957 .................. 106.0 98.0 95.1 91.4 94.7 99.3 100.8 102.5 103.2 101.8 102.2 104.8

1958 .................. 105.6 97.9 95.3 91.3 94.9 99.7 102.7 104.6 102.7 100.5 101.1 103.3

1959 .................. 104.5 98.1 95.6 93.0 95.4 99.5 103.1 105.0 102.2 100.4 100.7 1031

1960 .................. 104.0 98.1 95.6 93.5 94.8 99.5 103.9 105.4 101.7 100.4 100.1 102.7

1961.................. 103.6 98.0 95.2 94.3 95.3 - - - - - - - -

Subsequent^ 103.6 98.0 95.2 94.3 95.3 99.5 103.9 105.4 101.7 100.4 100.1 102.7

Price indexes (1957-59 = 100)

1953 .................. . . _ . 91.2 90.6 92.3 98.1 104.2 105.6 102.9

1954 .................. 98.4 86.0 84.2 87.4 95.1 101.8 97.7 93.2 93.2 96.1 95.4 97.6

1955 .................. 96.7 90.2 88.7 86.8 85.3 88.6 89.9 89.6 97.2 101.6 100.6 115.2

1956 .................. 107.4 95.9 88.7 84.7 88.1 93.4 93.9 94.2 96.0 91.9 93.8 94.7

1957 .................. 95.7 89.2 88.1 86.5 95.9 100.3 101.5 108.8 113.5 108.7 113.9 114.9

1958 .................. 117.1 107.1 103.3 91.9 93.9 98.6 102.2 103.6 99.4 95.3 93.9 96.1

1959 .................. 100.6 98.4 97.7 96.5 96.1 98.6 99.0 99.3 95.3 99.6 98.4 102.5

1960 .................. 95.3 86.8 85.6 84.0 87.2 94.6 104.9 106.0 99.2 96.3 96.4 99.5

1961.................. 108.1 107.4 104.4 111.0 109.7 - - - - - - -

See footnotes at end of tab les.

30

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series—Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

33. Cabbage

Seasonal factors

1953 .................. . . . - - 101.0 97.6 90.9 89.0 88.2 89.7 100.0

1954 .................. 110.2 105.7 106.2 114.3 107.3 102.3 97.5 90.9 88.8 88.0 89.3 100.1

1955 .................. 110.1 106.1 107.0 115.8 106.4 101.6 96.8 91.0 89.3 88.1 89.1 98.8

1956 .................. 110,4 107.7 109.4 115.4 107.2 101.4 94.5 90.5 89.4 87.7 88.1 98.2

1957 .................. 113.0 110.2 109.4 114.3 106.0 101.0 93.9 88.8 88.1 88.3 88.0 99.5

1958 .................. 112.6 110.3 110.1 110.5 109.3 101.6 94.2 88.5 87.6 88.3 88.2 98.8

1959 .................. 112.2 112.5 111.1 109.1 109.0 100.6 93.6 88.1 87.3 88.5 88.6 99.7

1960 .................. 112.6 113.0 109.8 106.3 110.3 101.9 93.5 87.5 86.5 88.5 88.7 101.1

1961.................. 113.0 112.8 108.7 106.3 109.7 - - - - - - -

Subsequent ^ 113.1 112.9 108.8 106.4 109.8 102.1 93.7 87.7 86.7 88.7 88.9 101.3

Price indexes (1957-59 = 100)

1953 .................. . . . - - 101.5 88.3 77.9 78.2 77.7 73.7 74.6

1954 .................. 78.0 75.3 82.0 81.7 83.9 72.9 71.9 71.5 67.3 66.4 72.1 86.2

1955 .................. 99.0 96.4 86.6 103.7 115.4 88.9 77.1 76.5 80.3 84.2 89.1 103.8

1956 .................. 107.4 91.7 88.4 95.1 88.7 96.1 89.0 82.2 79.6 76.7 74.3 81.9

1957 .................. 92.1 95.9 106.1 117.1 101.4 96.1 95.3 92.7 92.4 87.3 86.8 92.1

1958 .................. 116.1 126.6 133.2 123.1 116.5 96.6 84.9 77.5 77.5 77.9 76.1 85.7

1959 .................. 113.9 109.6 104.3 99.3 101.0 94.8 97.0 92.5 93.5 104.9 108.0 134.7

1960 .................. 126.7 120.4 110.3 108.6 136.6 121.6 100.6 93.5 88.4 87.5 88.4 94.3

1961.................. 102.2 105.7 101.8 103.4 101.4 - - - - - - -

34. Tomatoes

Seasonal factors

1953 ............... _ . . . . 100.7 102.8 73.0 63.0 74.2 90.1 109.2

1954 ............... 114.2 110.5 126.4 117.1 117.5 101.8 102.6 72.8 62.0 73.8 90.5 110.4

1955 ............... 114.3 109.3 125.8 118.4 119.0 103.6 100.4 72.4 62.9 74.7 90.3 109.2

1956 ............... 115.0 110.5 125.0 120.7 121.1 102.1 96.4 70.6 64.3 75.2 92.8 106.5

1957 ............... 115.8 111.2 124.3 122.1 120.5 104.3 93.5 69.2 65.0 77.1 91.5 105.8

1958 ............... 117.8 111.9 119.6 122.0 121.6 103.9 91.4 69.7 62.9 76.3 89.1 113.5

1959 ............... 118.7 112.1 114.0 123.8 125.3 103.1 90.2 69.4 64.6 77.3 88.7 113.1

1960 ............... 119.0 113.9 113.2 123.2 123.2 102.2 91.1 69.1 63.8 76.8 88.9 115.7

1961............... 119.4 113.3 113.1 122.4 122.1 - - - - - - -

Subsequent^ 119.4 113.2 113.0 122.4 122.1 102.6 91.5 69.4 64.0 77.1 89.2 116.1

Price indexes (1957-59= 100)

1953 ............... _ . . . - 125.0 99.8 69.3 51.4 65.1 77.1 112.8

1954 ............... 108.3 97.7 101.3 94.6 113.0 80.6 86.7 68.2 54.8 65.9 82.6 96.7

1955 ............... 98.9 101.4 113.5 107.2 100.5 89.5 93.3 59.5 69.7 75.7 92.2 91.4

1956 ............... 110.9 108.0 139.6 111.9 94.0 109.8 98.8 71.3 54.7 69.1 87.3 113.5

1957 ............... 105.1 91.8 107.7 119.6 132.5 111.9 88.4 71.3 65.5 77.0 87.9 106.7

1958 ............... 128.2 134.8 137.3 151.4 145.8 94.0 87.1 64.0 60.3 70.6 92.2 100.7

1959 ............... 116.1 106.0 105.5 106.3 113.0 99.1 85.7 72.6 69.7 89.1 92.8 112.9

1960 ............... 129.9 122.9 112.3 129.6 128.5 110.1 100.9 69.4 63.4 72.5 80.8 127.0

1961............... 104.6 99.4 101.2 111.5 109.7 - - - - - -• -

See footnotes at end of tab les.

31

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series—Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

35. Beans, green

Seasonal factors

1953 ................... - - - . - 90.0 83.8 77.2 78.7 85.5 96.3 94.8

1954 .................. 125.0 128.8 117.9 110.3 111.5 88.5 84.1 76.4 78.1 85.6 96.2 97.3

1955 .................. 123.9 128.8 119.5 110.5 111.8 87.4 84.8 77.2 78.2 86.2 95.7 95.9

1956 .................. 123.6 134.2 123.9 108.3 109.5 81.6 84.8 76.4 78.7 87.3 95.5 96.2

1957 .................. 123.7 136.8 122.2 109.2 110.1 80.9 80.6 76.0 79.5 86.8 95.4 99.4

1958 .................. 119.8 137.8 126.3 107.4 107.0 80.6 81.8 73.9 78.6 86.5 98.6 101.4

1959 .................. 119.0 136.0 127.6 108.5 104.1 80.9 81.0 74.9 80.0 86.6 100.4 101.2

1960 .................. 119.5 136.2 126.1 108.4 103.4 80.9 79.5 73.9 80.3 86.5 101.4 103.9

1961................... 119.5 132.4 123.5 110.4 104.5 - - - - - - -

Subsequent ^ 119.6 132.4 123.5 110.4 104.5 81.4 79.9 74.3 80.8 86.9 101.9 104.4

Price indexes (1957-59 = 100)

1953 ................... - * - - • - 113.5 88.3 75.9 80.6 86.8 89.6 88.0

1954 ................... 110.5 104.9 109.4 103.6 98.1 73.0 89.4 74.4 71.3 78.2 103.5 90.3

1955 ................... 115.9 112.4 93.7 100.1 102.9 75.2 62.3 76.5 82.2 85.7 88.1 89.7

1956 .............. . 128.9 135.3 108.7 104.4 113.8 115.2 87.3 70.0 74.2 87.8 95.4 111.8

1957 .................. 111.3 126.3 132.2 106.7 110.1 85.9 94.3 85.0 80.1 89.9 97.5 95.0

1958 ................... 147.0 (2) (2) 117.2 107.5 80.7 81.1 69.0 78.2 89.6 89.7 90.5

1959 ................... 121.3 125.8 109.5 120.9 113.7 77.8 75.8 78.2 85.6 86.5 1 120.8 128.6

1960 ............... ... 111.6 133.0 132.4 110.1 112.4 93.8 84.0 79.4 85.3 87.4 102.2 96.0

1961................... 115.6 115.9 110.8 104.0 99.3 - - - - - - -

36. Other foods at home

Seasonal factors

1953 ................... . . . 98.3 99.6 101.8 102.1 102.4 101.0 100.3

1954 .................. 99.7 99.2 98.9 98.4 98.2 98.4 99-7 101.7 102.1 102.4 101.1 100.3

1955 .................. 99.7 99.3 98.9 98.4 98.1 98.2 99.6 101.6 102.1 102.4 101.2 100.5

1956 .................. 99.7 99.1 99.0 98.5 98.1 98.0 99.5 101.4 102.1 102.2 101.5 100.7

1957 .................. 99.9 99.0 99.4 98.4 97.8 97.6 99.4 100.9 102.4 102.3 101.7 101.0

1958 .................. 100.1 98.7 99.1 98.8 97.9 97.6 99.2 100.5 102.2 102.5 102.0 101.1

1959 .................. 100,0 99.0 99.1 98.7 97.7 97.5 99.1 100.4 102.3 102.5 102.0 101.2

1960 .................. 100.1 98.9 99.1 98.8 97.8 97.6 99.1 100.3 102.3 102.5 102.0 101.2

1961............ 100.1 99.1 99.0 98.7 97.7 - - - - - - -

Subsequent^ 100.1 99.1 99.0 98.7 97.7 97.6 99.1 100.3 102.3 102.5 102.0 101.2

Price indexes (1957-59 = 100)

1953 .................. . _ . . _ 100.4 101.6 103.5 105.6 106.2 103.9 102.7

1954 .................. 102.7 103.2 101.6 102.8 103.6 104.3 106.2 108.2 105.0 104.7 102.9 101.4

1955 ................... 100.7 101.4 101.3 99.0 98.1 97.5 98.8 101.9 103.3 103.1 102.4 102.9

1956 .................. 102.1 99,2 100.2 100.3 100.4 100.5 102.1 103.1 104.4 104.8 104.3 103.3

1957 .................. 102.0 102.3 101.0 100.5 99.5 99.1 101.1 103.0 104.1 105.2 104.6 104.0

1958 .................. 102.4 100.7 103.0 101.7 100.9 100.4 101.2 102.1 104.3 102.4 101.9 100.2

1959 .................. 99.5 97.8 97.1 94.8 93.0 92.6 95.7 96.1 97.4 96.8 9 6 3 95.4

1960 .................. 94.6 93.1 93.6 96.0 94.9 94.6 94.8 96,4 98.9 101.4 101.0 101.0

1961.................. 99.1 98.2 97.4 96.3 95.7 - - - - - -

See footnotes at end of tab les.

32

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series—Continued

Year Jan . Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

37. Shortening, hydrogenated

Seasonal factors

1953 ..................

- - - - . 100.6 100.9 100.7 100.4 99.7 99.3 99.4

1954 .................. 99.6 99.3 99.6 100.2 100.3 100.9 100.9 100.6 100.3 99.7 99.2 99.3

1955 .................. 99.6 99.5 99.7 100.1 100.2 100.8 100.8 100.7 100.3 99.6 99.3 99.4

1956 .................. 99.7 99.3 99.7 100.2 100.4 100.8 100.7 100.7 100.2 99.6 99.4 99.5

1957 ............... .. 99.8 99.3 99.7 100.2 100.3 100.6 100.6 100.7 100.3 99.4 99.6 99.9

1958 .................. 100.0 99.0 99.4 100.3 100.3 100.4 100.5 100.7 100.3 99.5 99.7 100.0

1959 .................. 100.2 99.0 99.4 100.1 100.2 100.0 100.5 100.8 100.5 99.5 99.9 100.3

1960 .................. 100.2 98.7 99.3 100.1 100.2 100.0 100.5 100.7 100.5 99.6 99.9 100.3

1961.................. 100.2 98.7 99.2 100.1 100.1 - - - - - - -

Subsequent ^ 100.2 98.7 99.2 100.1 100.1 100.0 100.5 100.7 100.5 99.6 99.9 100.3

Price indexes (1957-59 = 100)

1953 .................. . . . - 94.5 94.5 93.6 93.3 93.0 93.1 94.4

1954 .................. 95.3 94.6 94.5 94.5 94.9 96.2 97.0 97.6 98.0 98.1 96.7 96.7

1955 .................. 96.5 96.5 96.3 95.7 93.9 94.0 94.8 95.7 96.0 94.6 94.6 94.5

1956 .................. 94.5 94.6 96.7 100.7 103.9 106.0 105.3 104.9 103.9 103.7 103.7 104.2

1957 .................. 105.8 107.3 107.2 106.1 105.7 105.3 104.4 104.3 103.5 102.2 102.2 102.7

1958 .................. 102.9 101.3 101.8 102.4 102.2 101.1 101.1 100.3 99.2 99.1 99.2 99.4

1959 . ............ 98.8 96.3 95.5 94.9 94.0 94.3 94.8 95.1 94.4 92.0 91.2 90.9

1960 .................. 89.3 86.4 86.5 87.3 86.2 85.5 86.5 87.9 88.8 88.9 90.3 91.1

1961.................. 91.9 91.9 93.7 96.2 99.0 - - - - - - -

38. Eggs, grade A/ large___________________________________________________

Seasonal factors

1953 .................. - - - - . 90.9 96.5 105.4 108.7 110.7 106.3 103.2

1954 .................. 99.5 99.0 96.7 92.5 90.3 91.0 96.5 105.1 108.6 110.6 106.5 103.5

1955 .................. 99.3. 99.3 96.4 92.7 90.3 90.4 96.2 104.7 108.7 111.0 107.1 104.3

1956 .................. 99.2 97.8 96.9 92.9 90.4 89.4 95.8 104.1 110.1 110.4 108.0 104.5

1957 .................. 99.5 97.3 98.1 92.7 89.5 88.2 96.1 103.0 111.1 110.6 108.5 105.9

1958 .................. 100.9 95.2 96.3 94.2 90.4 88.2 95.2 101.3 110.6 111.9 109.8 106.2

1959 .................. 100.3 96.3 96.6 93.8 89.6 87.7 95.2 101.2 111.0 112.2 110.1 106.5

1960 .................. 100.7 95.6 96.7 93.9 89.7 88.0 94.9 100.8 111.0 112.0 110.0 106.5

1961.................. 101.1 96.6 95.9 93.7 89.5 - - - - - - -

Subsequent^ 101.1 96.6 95.9 93.7 89.5 88.0 94.9 100.8 111.0 112.0 110.0 106.5

Price indexes (1957-59 = 100)

1953 ..................

_ . «• 119.8 124.7 131.3 137.3 140.5 128.8 122.5

1954 .................. 118.2 115.6 102.1 97.9 94.7 93.4 100.0 108.6 104.8 105.0 102.2 94.4

1955 .................. 90.7 103.8 105.9 96.6 93,5 94.4 100.5 114.6 120.1 119.8 116.4 121.1

1956 ............ ... . 118.8 104.2 104.4 102.5 100.9 99.1 102.3 106.1 110.3 111.3 107.6 102.8

1957 ............ ... . 94.5 94.4 88.8 88.7 85.8 84.4 95.1 104.8 114.1 122.2 120.4 117.2

1958 .................. 107.5 99.9 111.2 103.7 99.5 96.8 101.2 107.0 120.9 112,1 110.3 103.6

1959 .................. 102.2 98.2 95.1 84.5 79.1 77.7 92.0 95.0 102.0 99.1 96.8 93.0

1960 .................. 89,2 84.0 86.4 97.3 92.1 89.8 90.3 98.3 110.2 122.2 121.1 120.7

1961.................. 111.5 105.6 100.9 93.4 90.3 - - - - -

See footnotes at end of tab les.

33

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series-Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

39. Housing

Seasonal factors

1953 ................... . . . . 99.9 99.9 100.0 100.1 100.2 100.2 100.2

1954 .................. 100.0 100.0 100.0 99.8 99.8 99.9 99.9 100.0 100.1 100.2 100.1 100.1

1955 .................. 100.0 100.0 100.0 99.9 99.8 99.9 99.9 100.0 100.1 100.1 100.1 100.1

1956 .................. 100.0 100.0 100.0 99.9 99.9 99.9 99.9 100.0 100.1 100.1 100.1 100.1

1957 .................. 100.0 100.1 100.0 100.0 99.9 99.9 99.9 99.9 100.0 100.1 100.1 100.1

1958 .................. 100.0 100.1 100.1 100.0 99.9 99.9 99.8 99.9 100.0 100.1 100.0 100.1

1959 .................. 100.0 100.1 100.1 100.1 99.9 99.9 99.8 99.9 100.0 100.1 100.1 100.1

1960 .................. 100.0 100.1 100.2 100.1 99.9 99.9 99.8 99.9 100.0 100.1 100.1 100.1

1961.................. 100.0 100.1 100.2 100.0 99.9 - - - - - - -

Subsequent ^ 100.0 100.1 100.2 100.0 99.9 99.9 99.8 99.9 100.0 100.1 100.1 100.1

Price indexes (1957-59 = 100)

1953 ..................

- - - - - 92.1 92.4 92.5 92.9 93.1 93.3 93.3

1954 ................... 93.2 93.3 93.3 92.9 93.3 93.3 93.3 93.5 93.7 93.7 93.7 93.9

1955 .................. 93.8 93.8 93.8 93.7 93.6 93.9 94.0 94.1 94.4 94.7 94.8 94.7

1956 ................... 94.6 94.7 94.7 94.7 94.8 95.2 95.5 95.8 96.1 96.3 96.5 96.9

1957 .................. 97.1 97.6 98.0 98.2 98.3 98.4 98.4 98.6 99.1 99.3 99.5 99.6

1958 .................. 99.7 99.8 100.0 100.2 100.2 100.2 100.2 100.3 100.3 100.3 100.4 100.5

1959 .................. 100.5 100.8 100.9 100.9 101.0 101.1 101.2 101.4 101.7 102.0 102.3 102.3

1960 .................. 102.5 102.9 103.0 103.1 102.9 103.0 103.0 103.1 103.5 103.7 103.6 103.8

1961................... 103.8 103.8 103.9 103.8 103.7 - - - - - -

40. Gas and Electricity

Seasonal factors

1953 ................... . _ . . • 99.9 99.8 99.9 100.0 100.0 100.1 100.0

1954 .................. 100.0 100.1 100.1 100.0 100.1 99.9 99.8 99.9 100.0 100.0 100.0 100.0

1955 .................. 100.1 100.1 100.1 100.0 100.1 99.8 99.7 100.0 100.1 100.0 100.0 100.0

1956 .................. 100.1 100.2 100.1 100.0 100.0 99.9 99.7 100.0 100.1 100.0 100.0 100.0

1957 .................. 100.2 100.2 100.1 99.9 100.0 99.9 99.7 100.0 100.3 100.1 100.0 100.0

1958 .................. 100.2 100.2 100.1 99.9 99.9 99.9 99.7 100.0 100.3 100.1 100.0 100.0

1959 .................. 100.2 100.2 100.1 99.9 99.9 99.9 99.7 99.9 100.3 100.1 100.0 100.0

1960 . ................ 100.2 100.2 100.1 99.8 100.0 99.9 99.7 99.9 100.3 100.2 100.0 100.0

1961 .: ............... 100.1 100.2 100.1 99.8 100.0 - - - - - - -

Subsequent^ 100.1 100.2 100.1 99.8 100.0 99.9 99.7 99.9 100.3 100.2 100.0 100.0

Price indexes (1957-59 = 100)

1953 ..................

. . . . 91.3 91.3 91.7 91.7 91.8 92.0 91.9

1954 .................. 91.9 92.2 92.3 92.3 92.4 92.3 92.5 92.5 92.5 93.1 93.2 93.6

1955 .................. 93.8 94.3 94.6 94.6 95.1 94.9 95.0 95.0 95.4 95.4 95.6 95.6

1956 .................. 95.8 95.8 95.8 95.9 95.9 95.8 95.8 96.1 96.2 96.1 95.9 96.1

1957 .................. 96.3 96.4 96.4 96.4 96.3 96.3 96.3 97.2 97.5 97.6 98.0 98.0

1958 ........ 99.2 99.4 99.4 99.5 99.9 100.3 100.3 100.8 101.2 101.3 101.3 101.4

1959 ............... ... 101.4 101.6 101.6 101.4 101.8 102.3 102.5 103.0 104.3 104.4 104.4 105.2

1960 .................. 105.7 106.3 106.4 106.7 106.9 106.9 107.0 107.1 107.8 107.8 107.8 107.7

1961.................. 108.0 108.0 108.0 107.9 108.2 - - - - - - -

See footnotes at end of tab les.

34

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series—Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. •Nov. Dec.

41 e Gas, residential heating

Seasonal factors

1953 ..................

. - . - - 99.8 99.6 100.0 99.9 100.0 100.1 100.0

1954 .................. 100.0 100.3 100.1 99.9 100.3 99.8 99.6 100.0 99.9 100.1 100.0 100.0

1955 .................. 100.0 100.3 100.2 99.9 100.3 99.7 99.5 100.1 100.1 100.1 99.9 100.1

1956 .................. 100.0 100.4 100.2 99.9 100.2 99.6 99.5 100.0 100.2 100.1 99.9 100.0

1957 .................. 100.0 100.5 100.2 99.8 100.0 99.6 99.3 99.9 100.5 100.2 99.9 100.1

1958 .................. 100.0 100.5 100.2 99.8 99.9 99.6 99.3 99.8 100.6 100.2 99.9 100.1

1959 .................. 100.0 100.5 100.2 99.7 99.9 99.6 99.3 99.7 100.7 100.3 99.9 100.1

1960 .................. 99.9 100.5 100.2 99.7 99.9 99.6 99.4 99.6 100.7 100.3 100.0 100.0

1961.................. 100.0 100.5 100.2 99.7 100.0 - - - - - - -

Subsequent 1 100.0 100.5 100.2 99.7 100.0 99.6 99.4 99.6 100.7 100.3 100.0 100.0

Price iindexes (1957-59 = 100)

1953 ..................

. - - _ . 86.2 86.2 87.2 87.1 87.4 88.0 88.1

1954 .................. 88.1 88.1 88.3 88.4 88.8 88.6 88.7 88.8 88.8 89.5 89.7 90.2

1955 .................. 90.9 92.4 92.7 92.6 94.2 94.0- 93.9 94.0 94.3 94.4 94.7 94.3

1956 .................. 94.3 94.3 94.2 94.3 94.2 93.6 93.5 94.3 94.6 94.6 94.0 94.2

1957 .................. 94.4 94.3 94.3 94.3 • 94.3 94.0 94.1 96.2 96.6 96.7 96.7 96.7

1958 .................. 99.5 99.8 99.9 99.9 100.5 100.4 100.5 100.9 101.5 101.5 101.6 101.9

1959 .................. 101.9 102.1 102.2 101.2 101.6 102.4 103.0 104.2 107.4 107.4 107.4 108.6

1960 .................. 109.1 111.3 111.6 112.2 113.0 113.3 113.2 113.2 114.7 114.7 114.7 114.8

1961.................. 114.9 115.0 115.0 114.7 114.8 - - - - - - -

42. Gas, other than residential heating

Seasonal factors

1953 ..................

. . - - - 99.7 99.6 99.8 99.9 100.0 100.1 100.2

1954 .................. 100.4 100.2 100.2 100.1 100.0 99.7 99.6 99.8 99.9 100.0 100.1 100.2

1955 .................. 100.4 100.3 100.2 100.1 100.0 99.6 99.5 99.9 100.0 100.0 100.1 100.1

1956 .................. 100.4 100.3 100.2 100.0 99.9 99.7 99.6 99.8 100.1 100.1 100.1 100.0

1957 .................. 100.4 100.4 100.2 99.9 99.8 99.7 99.5 99.7 100.3 100.1 100.0 100.0

1958 .................. 100.4 100.4 100.2 99.9 99.7 99.7 99.5 99.7 100.3 100.1 100.0 99.9

1959 .................. 100.4 100.4 100.1 99.8 99.8 99.7 99.4 99.7 100.4 100.1 100.1 99.9

1960 .................. 100.4 100.4 100.1 99.7 99.8 99.7 99.5 99.6 100.4 100.2 100.0 100.0

1961.................. 100.4 100.4 100.1 99.8 99.9 - - - - - - -

Subsequent1 100.4 100.4 100.1 99.8 99.9 99.7 99.5 99.6 100.4 100.2 100.0 100.0

Price indexes (1957-59 = 100)

1953 ..................

. • . . 86.8 86.7 87.4 87.4 87.6 88.1 88.1

1954 .................. 88.1 88.1 88.1 88.1 88.2 88.1 88.2 88.1 88.1 88.8 88.9 89.6

1955 .................. 90.0 90.1 90.9 90.9 91.3 90.9 90*9 91.0 91.8 91.9 92.4 92.4

1956 .................. 92.8 92.9 92.7 93.0 93.0 92.9 93.0 93.6 93.7 93.7 93.5 93.7

1957 .................. 94.3 94.3 94.3 94.2 94.0 93.9 93.9 95.4 96.2 96.3 97.2 97.2

1958 .................. 98.9 99.4 99.4 99.4 99.7 100.7 100.9 101.3 102.3 102.5 102.5 102.6

1959 .................. 102.6 103.2 103.1 102.9 103.2 103.4 103.5 103.9 105.7 105.8 106.1 107.3

1960 .................. 108.5* 109.0 109.1 109.3 109.6 109.6 109.7 110.0 110.9 110.9 110.9 110.6

1961.................. 111.3 111.3 111.2 111.1 112.1 - - - - - -

See footnotes at end of tab les.

35

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series-Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

43. Solid and petroleum fuels

Seasonal factors

1953 ..................

- . - - - 98.1 98.6 98.7 99.3 100.2 100.5 100.9

1954 .................. 101.6 101.7 101.6 100.6 98.2 98.2 98.6 98.7 99.3 100.2 100.4 100.9

1955 .................. 101.7 101.8 101.6 100.5 98.3 98.2 98.6 98.7 99.2 100.1 100.5 101.0

1956 . ............... 101.8 101.8 101.6 100.5 98.3 98.2 98.4 98.7 99.3 100.1 100.3 101.0

1957 .................. 101.9 101.9 101.7 100.6 98.3 98.1 98.3 98.6 99.3 100.0 100.3 101.0

1958 .................. 102.1 102.1 101.7 100.5 98.4 98.1 98.2 98.5 99.3 100.0 100.2 100.8

1959 .................. 102.0 102.3 101.8 100.7 98.4 98.0 98.2 98.5 99.4 99.9 100.2 100.8

1960 .................. 102.0 102.3 101.9 100.7 98.4 98.0 98.2 98.6 99.4 99.9 100.1 100.7

1 9 6 1 .................. 102.0 102.4 101.9 100.8 98.4 - - - - - - -

Subsequent 1 102.0 102.4 101.9 100.8 98.4 98.0 98.2 98.6 99.4 99.9 100.1 100.7

Price indexes (1957-59 = 100)

1953 .................. . - - - - 89.4 90.8 90.9 91.4 92.2 92.4 91.9

1954 .................. 92.2 92.6 92.3 90.9 88.7 88.7 88.8 89.4 89.8 90.8 91.1 92.1

1955 .................. 92.5 92.6 92.6 92.2 89.9 90.0 90.4 90.8 91.9 92.7 93.0 93.9

1956 .................. 95.0 95.4 95.8 95.2 93.8 94.2 94.4 95.0 95.7 97.5 98.5 99.9

1957 .................. 101.9 102.2 102.1 101.3 99.3 99.3 99.7 99.6 100.4 101.0 101.2 101.5

1958 .................. 101.5 100.7 100.3 98.5 96.6 96.6 97.1 98.0 99.2 99.5 99.6 100.5

1959 .................. 101.9 102.7 102.9 101.8 99.3 98.2 98.3 98.2 99.0 99.4 99.7 100.7

1960 .................. 102.0 102.0 100.7 100.0 97.5 97.1 97.5 97.9 98.9 99.9 100.0 100.5

1961.................. 102.4 103.7 103.7 102.6 100.1 - - - - - - -

44. Solid fuels7

Seasonal factors

1956 ..................

_ . . . _ 97.6 98.0 98.4 99.8 100.4 101.0 101.1

1957 .................. 101.7 101.9 101.8 100.6 97.6 97.6 98.0 98.4 99.8 100.4 101.0 101.1

1958 .................. 101.7 101.9 101.8 100.6 . 97.6 97.5 98.0 98.4 99.8 100.4 101.0 101.1

1959 .................. 101.6 101.9 101.8 100.7 97.7 97.5 98.1 98.5 99.8 100.5 100.9 101.1

1960 .................. 101.6 101.9 101.8 100.8 97.7 97.5 98.1 98.5 99.8 100.4 100.9 101.0

1961.................. 101.6 101.9 101.8 100.9 97.7

Subsequent1 101.6 101.9 101.8 100.9 97.7 97.5 98.1 98.5 99.8 100.4 100.9 101.0

Price indexes (1957-59 = 100)

1956 ..................

- . . 91.5 91.9 92.8 94.1 96.2 97.9 99.6

1957 .................. 99.9 99.9 99.9 98.9 96;3 96.5 97.4 98.2 99.6 100.6 101.1 101.5

1958 .................. 101.6 101.9 102.0 100.5 97.5 97.7 98.4 98.5 99.9 100.4 100.7 100.9

1959 .................. 101.6 102.4 102.4 101.5 98.6 98.7 99.3 99.6 101.0 101.6 102.1 102.2

1960 .................. 102.6 102.9 102.9 101.7 98.3 97.9 98.8 99.3 100.4 101.1 101.8 101.9

1961................... 102.6 103.2 103.2 102.7 99.7

See footnotes at end of tab les.

36

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series-Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

45* Fuel oil # 2

Seasonal factors

1953 ..................

. . . - 98.8 99.0 98.9 98.8 99.8 99.7 100.5

1954 .................. 101.6 101.8 101.4 100.8 99.4 98.9 99.0 98.9 98.8 99.8 99.6 100.3

1955 .................. 101.7 101.9 101.4 100.8 99.4 98.9 99.0 98.8 98.7 99.6 99.7 100.4

1956 .................. 101.9 101.9 101.5 100.7 99.5 99.1 98.7 98.9 98.9 99.4 99.2 100.5

1957 .................. 102.2 101.9 101.7 100.7 99.6 98.9 98.7 98.7 98.9 99.2 99.1 100.4

1958 .................. 102.6 102.3 101.6 100.7 99.7 98.9 98.6 98.5 98.8 99.2 99.0 100.2

1959 .................. 102.6 102.7 102.0 100.8 99.5 98.7 98.5 98.5 98.8 99.0 98.9 100.3

1960 .................. 102.6 102.8 102.0 100.8 99.5 98.7 98.5 98.6 98.9 99.1 98.8 100.1

1961.................. 102.5 103.0 102.0 100.8 99.4 - - - - - - -

Subsequent ^ 102.5 103.0 102.0 100.8 99.4 98.6 98.4 98.5 98.8 99.0 98.7 100.0

Price indexes (1957-59 = 100)

1953 ..................

. . . • - 89.0 90.7 90.8 90.7 92.5 92.6 91.2

1954 .................. 92.0 93.0 92.2 91.0 89.1 88.8 88.8 89.4 89.7 91.3 91.5 93.7

1955 ------------- 94.3 94.3 94.3 94.4 92.8 92.8 92.8 93.4 93.7 93.9 94.0 95.8

1956 .................. 97.4 97.7 98.1 98.1 98.1 98.1 98.1 98.1 98.1 99.5 99.5 100.5

1957 .................. 104.8 105.9 105.7 105.6 104.5 103.8 103.4 101.9 101.8 101.7 101.7 101.7

1958 .................. 101.7 98.9 97.8 95.5 95.3 95.3 95.3 97.3 98.0 97.9 97.7 99.8

1959 .................. 102.3 103.1 103.8 102.1 100.0 97.3 96.8 96.0 95.9 96.0 96.1 98.3

1960 .................. 100.7 100.5 97.3 97.3 95.9 95.3 95.4 95.4 96.2 97.4 97.0 98.0

1961.................. 102.0 104.1 104.2 102.3 100.2 - - - - - • -

46< Housefurnishings

Seasonal factors

1953 ..................

. . . . 99.9 99.9 99.5 100.1 100.4 100.3 100.3

1954 .................. 99.6 100.1 100.3 100.0 99.7 99.9 99.9 99.5 100.2 100.4 100.3 100.3

1955 .................. 99.6 100.1 100.3 100.0 99.7 99.9 99.8 99.5 100.2 100.4 100.2 100.3

1956 .................. 99.6 100.2 100.2 100.0 99.7 100.0 99.8 99.5 100.1 100.3 100.1 100.3

1957 .................. 99.6 100.3 100.1 100.1 99.8 100.0 99.8 99.5 100.0 100.2 100.1 100.2

1958 .................. 99.6 100.3 100.1 io o j 99.8 100.0 99.9 99.5 100.1 100.1 100.1 100.1

1959 .................. 99.7 100.3 100.1 100.2 99.8 100.1 99.9 99.5 100.0 100.0 100.1 100.1

1960 .................. 99.7 100.2 100.1 100.1 99.9 100.1 100.0 99.5 100.0 100.0 100.1 100.1

1961.................. 99.7 100.2 100.2 100.1 99.8 - - - - - - -

Subsequent 99.7 100.2 100.2 100.1 99.8 100.1 100.0 99.5 100.0 100.0 100.1 100.1

Price indexes (1957-59 = 100)

1953 ..................

- - - - - 103.7 103.8 103.2 103.8 103.8 104.0 103.8

1954 .................. 103.0 103.0 103.0 101.9 101.7 101.6 101.5 101.2 101.8 101.4 101.2 101.2

1955 .................. 100.5 100.7 100.5 100.4 99.6 99.7 99.5 99.1 99.5 100.3 100.4 99.3

1956 .................. 98.0 98.5 99.0 98.7 98.6 98.8 98.8 98.6 99.2 99.5 99.7 100.0

1957 .................. 99.9 100.9 100.8 101.0 100.1 100.5 100.0 99.8 100.7 100.7 100.4 100.8

1958 .................. 100.1 100.8 99.8 99.9 99.9 100.0 99.9 99.2 99.5 99.3 99.4 99.5

1959 .................. 99.1 99.7 99.7 99.7 99.6 100.0 99.9 99.5 99.9 100.0 100.3 100.1

1960 .................. 99.9 100.2 100.6 100.6 100.2 *100.2 100.0 99.4 100.0 99.9 99.9 99.8

1961.................. 99.5 99.6 99.8 99.7 99.4 - - - - - - -

See footnotes at end of tab les.

37

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series-Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. D ec.

47. Apparel9 .

Seasonal factors

1959 ..........

1960 .........

1961 .........

99.4

99.4

99.6

99.5

99.8

99.8

99.6

99.6

99.7

99.7

99.6

99.6

99.6

99.7

99.8

99.8

100.7

100.8

100.9

100.9

100.7

100.7

100.5

100.5

Subsequent^'8 99.4 99.5 99.8 99.6 99.7 99.6 99.7 99.8 100.8 100.9 100.7 100.5

Price indexes (1957-59 = 100)

1959 ..........

1960 .........

1961 ..........

100.7

102.1

101.1

102.2

101.5

102.4

101.6

102.1

101.6

102.2

100.1

101.6

100.3

101.8

100.7

102.0

101.7

103.2

102.1

103.5

102.1

103.3

101.9

103.2

48.Men’s and boys’ apparel9

Seasonal factors

1959 ..... .

1960 ..........

1961 .........

99.8

99.8

99.7

99.7

99.7

99.8

100.0

100.0

100.0

100.0

99.9

99.9

99.8

99.8

100.0

100.1

100.3

100.3

100.1

100.0

100.3

100.3

100.3

100.3

Subsequent^ 99.8 99.7 99.8 100.0 100.0 99.9 99.8 100.1 100.3 100.0 100.3 100.3

Price indexes (1957-59:= 100)

1959 .........

1960 .........

1961 .........

100.1

102.5

100.0

102.4

100.2

102.5

100.7

102.8

100.9

1*02.8

99.4

101.0

99.6

101.4

100.1

101.7

100.5

103.2

100.2

103.2

100.4

103.0

100.4

103.0

49. Women’s and girls’ apparel9

Seasonal factors

1959 .........

1960 .........

1961 .........

98.8

98.8

99.5

99.4

99.8

99.8

99.3

9 9.4

99.3

99.3

99.3

99.3

99.3

99.4

99.4

99.4

101.3

101.3

101.8

101.8

101.3

101.3

100.7

100.8

Subsequent 98.8 9 9 .4 99.8 99.4 99.3 99.3 99.4 99.4 101.3 101.8 101.3 100.8

Price indexes (1957-59:= 100)

1 9 5 9 ................

1960 .........

1961 .........

98.7

99.8

100.0

100.2

100.3

100.6

100.3

99.8

io o .i

100.0

99.5

99.8

99.5

100.1

99.5

100.4

101.2

101.8

102.0

102.5

101.6

102.1

101.0

101.8

See footnotes at end of tab les.

58

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series-Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

50. Other apparel10

Seasonal factors

1953 .................. - - - - - 99.9 100.0 100.0 100.4 100.3 100.2 100.2

1954 .................. 99.7 99.8 99.7 99.8 99.9 99.9 100.0 100.0 100.4 100.3 100.2 100.2

1955 .................. 99.7 99.8 99.8 99.8 99.9 99.9 99.9 100.0 100.4 100.3 100.3 100.2

1956 .................. 99.7 99.8 99.8 99.8 99.9 99.8 99.9 100.0 100.2 100.3 100.3 100.3

1957 .................. 99.8 99.8 99.9 99.8 99.9 99.7 99.9 100.0 100.3 100.3 100.4 100.3

1958 .................. 99.7 99.8 99.9 99.8 99.9 99.7 99.9 99.9 100.3 100.3 100.4 100.4

1959 .................. 99.7 99.8 99.8 99.8 99.9 99.7 99.9 99.9 100.3 100.3 100.5 100.4

1960 .................. 99.6 99.8 99.8 99.8 99.9 99.7 99.9 99.9 100.3 100.2 100.5 100.4

1961.................. 99.6 99.8 99.8 99.8 99.9 - - - - - - -

1 8 Subsequent / 99.6 99.8 99.8 99.8 99.9 99.7 99.9 99.9 100.3 100.2 100.5 100.4

Price iindexes (1957-59 = 100)

1953 .................. . . - - - 100.2 100.1 99.9 100.4 100.2 99.1 98.7

1954 ............ . 98.2 98.2 97.7 98.2 98.7 98.8 98.6 98.5 98.7 98.9 99.0 98.9

1955 .................. 98.3 98.4 98.2 97.9 98.0 97.8 98.3 98.3 98.8 98.8 98.8 98.9

1956 .................. 98.5 98.8 98.9 98.9 98.9 98.9 99.2 99.3 99.9 100.0 100.0 100.1

1957 .................. 99.8 99.6 100.1 99.9 99.9 99.8 99.8 99.9 100.2 100.4 100.5 100.2

1958 .................. 99.8 99.9 99.8 99.8 100.0 99.8 99.9 99.8 99.9 99.7 100.2 100.2

1959 .................. 99.6 99.6 99.7 99.8 100.0 99.7 100.2 100.4 100.9 100.9 101.3 101.1

1960 .................. 100.1 100.8 101.0 100.9 101.2 101.1 101.1 101.1 101.8 102.0 102.2 102.1

1961.................. 101.0 100.9 100.5 100.8 100.8 - - - * - - -

51. Transportation

Seasonal factors

1953 .................. . - . _ 99.7 99.3 99.5 99.5 100.3 100.9 100.2

1954 .................. 100.6 100.3 100.1 99.5 99.7 99.6 99.3 99.6 99.5 100.2 101.0 100.3

1955 .................. 100.5 100.3 100.1 99.6 99.7 99.6 99.3 99.5 99.4 100.2 101.1 100.4

1956 .................. 100.5 100.3 100.1 99.6 99.7 99.5 99.4 99.5 99.3 100.2 101.3 100.5

1957 .................. 100.3 100.2 100.1 99.6 99.6 99.4 99.6 99.6 99.3 100.3 101.4 100.6

1958 .................. 100.2 100.1 99.9 99.6 99.5 99.4 99.6 99.7 99.3 100.3 101.2 100.7

1959 .................. 100.3 100.1 99.9 99.6 99.4 99.4 99.6 99.8 99.4 100.4 101.2 100.7

1960 .................. 100.3 100.1 99.8 99.5 99.4 99.4 99.6 99.8 99.4 100.4 101.1 100.7

1961.................. 100.3 100.1 99.8 99.5 99.4 - - - - - - -

Subsequent 100.3 100.1 99.8 99.5 99.4 99.4 99.6 99.8 99.4 100.4 101.1 100.7

Price indexes (1957-59 = 100)

1953 .................. - - - - 91.8 92.1 92.7 92.8 92.8 92.3 91.5

1954 .................. 92.6 91.8 91.6 91.6 91.6 91.5 89.9 89.9 89.7 88.7 90.6 90.3

1955 .................. 90.6 90.4 90.3 88.9 89.1 89.3 89.0 89.0 88.9 89.9 91.2 90.3

1956 .................. 90.0 90.1 89.9 89.7 90.2 90.0 90.6 91.2 91.3 94.1 94.5 94.5

1957 .................. 94.8 95.4 95.9 96.2 96.0 96.0 96.4 96.5 96.5 96.4 99.4 98.6

1958 .................. 98.4 98.3 98.4 98.2 98.4 98.6 99.6 100.1 100.3 101.3 102.6 102.4

1959 .................. 102.3 102.4 102.8 103.1 103.2 103.5 103.8 104.1 103.9 105.4 105.7 105.5

1960 ...... 104.8 104.7 104.0 103.7 103.3 103.5 103.5 103.8 102.7 103.7 104.0 104.0

1961.................. 103.8 103.8 103.4 103.5 104.0 - - - - - - -

See footnotes at end of tab les.

39

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series-Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

52. Private transportation

Seasonal factors

1953 ..................

- - - - - 99.7 99.2 99.4 99.5 100.3 101.1 100.4

1954 .................. 100.6 100.3 100.2 99.6 99.8 99.6 99.2 99.4 99.4 100.2 101.2 100.4

1955 .................. 100.6 100.3 100.2 99.7 99.8 99.6 99.3 99.4 99.4 100.2 101.3 100.5

1956 ....... 100.5 100.2 100.2 99.6 99.7 99.5 99.3 99.4 99.2 100.2 101.5 100.7

1957 .................. 100.4 100.2 100.2 99.6 99.6 99.4 99.5 99.5 99.2 100.3 101.6 100.8

1958 .................. 100.3 100.1 100.0 99.7 99.5 99.4 99.5 99.7 99.3 100.4 101.4 100.8

1959 .................. 100.3 100.1 99.9 99.6 99.4 99.4 99.6 99.7 99.3 100.5 101.3 100.9

1960 .................. 100.3 100.1 99.8 99.5 99.4 99.4 99.6 99.8 99.3 100.4 101.2 100.9

1961.................. 100.3 100.1 99.8 99.5 99.4 - - - - - - -

Subsequent ^ ’ 100.3 100.1 99.8 99.5 99.4 99.4 99.6 99.8 99.3 100.4 101.2 100.9

Price indexes (1957-59 = 100)

1953 .................. „ - - - - 93.7 93.9 94.2 94.2 94.2 93.8 92.7

1954 .................. 93.8 92.8 92.5 92.6 92.6 92.2 90.4 90.3 90.1 88.9 91.1 90.9

1955.................. 91.0 90.9 90.7 89.0 89.2 89.4 89.0 88.9 88.9 89.9 91.4 90.4

1956 .................. 89.8 89.8 89.6 89.4 89.9 89.6 90.3 91,0 91.1 94.3 94.8 94.6

1957 .................. 95.0 95.5 96.1 96.3 96.2 96.2 96.4 96.4 96.3 96.2 99.5 98.7

1958 .................. 98.5 98.2 98.2 97.9 98.2 98.2 99.2 99.8 100.1 101.2 102.5 102.3

1959 .................. 102.1 102.3 102.8 103.1 103.2 103.5 103.8 104.0 103.8 105.4 105.8 105.5

1960 .................. 104.6 104.4 103.5 103.1 102.8 102.9 103.0 103.1 101.9 102.9 103.1 103.2

1961.................. 102.8 102.8 102.4 102.4 103.0 - - - - - - -

53. New automobiles11

Seasonal factors

I960 ................... 101.6 100.8 100.3 99.8 99.4 98.9 98.4 98.0 96.8 100.7 102.5 102.5

1961.................. 101.6 100.7 100.3 99.9 99.4 98.9 98.4 98.0 96.9 100.9 102.5 102.3

1962 .................. 101.6 100.8 100.3 99.9 99.4 98.8

Subsequent^ 101.6 100.8 100.3 99.9 99.4 98.8 98.4 98.0 96.9 100.9 102.5 102.3

Price indexes (1957-59 = 100)

1960 .................. 105.1 104.3 102.9 103.0 102.5 101.6 101.3 100.8 98.5 102.9 103.5 103.4

1961.................. 103.4 102.6 102.8 102.3 102.0 101.7 101.4 101.3 100.7 103.9 103.9 103.5

1962 ................... 103.3 102.4 102.4 102.2 101.8 101.5

See footnotes at end of tab les.

40

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series—Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

54* Medical Care

Seasonal factors

1953 ..................

- . . - . 100.0 99.9 99.9 100.0 99.9 100.1 100.1

1954 .................. 100.1 100.1 100.1 100.0 100.1 99.9 99.9 99.9 100.1 99.9 100.1 100.1

1955 .................. 100.1 100.0 100.1 100.1 100.1 99.9 100.0 99.9 100.0 99.9 100.1 100.1

1956 .................. 100.1 100.0 100.1 100.0 100.0 99.9 100.0 99.9 100.0 100.0 100.1 100.0

1957 .................. 100.1 100.1 100.1 99.9 100.0 99.9 100.0 99.9 100.1 100.0 100.1 100.0

1958 .................. 100.0 100.1 100.0 99.9 100.0 99.9 100.0 99.9 100.1 100.0 100.1 99.9

1959 .................. 100.0 100.1 100.0 100.0 100.0 100.0 100.0 99.9 100.0 100.0 100.1 99.9

1960 .................. 99.9 100.1 100.0 99.9 100.0 99.9 100.0 99.9 100.1 100.1 100.1 99.9

1 9 6 1 .................. 99.9 100.1 100.0 100.0 100.0 - - - - - - -

Subsequent ^ 99.9 100.1 100.0 100.0 100.0 99.9 100.0 99.9 100.1 100.1 100.1 99.9

Price indexes (1957-59 = 100)

1953 ..................

• . . . - 83.8 84.1 84.3 84.8 85.0 85.3 85.5

1954 .................. 85.6 85.9 86.1 86.4 86.6 86.6 86.6 86.9 87.0 87.1 87.3 87.4

1955 .................. 87.5 87.8 87.9 88.1 88.2 88.3 88.5 88.6 88.7 89.1 89.8 90.1

1956 .................. 90.4 90.6 90.9 91.1 91.3 91.3 91.8 92.2 92.7 92.8 93.1 93.2

1957 .................. 93.6 93.8 94.4 94.7 95.0 95.4 95.8 95.9 96.2 96.7 97.1 97.4

1958 .................. 98.1 98.2 98.5 98.8 99.4 99.8 100.3 100.6 101.4 101.8 102.0 102.1

1959 ................... 102.4 103.1 103.3 103.5 103.9 104.2 104.5 104.8 105.3 105.5 105.9 106.0

1960 .................. 106.2 107.1 107.3 107.6 107.9 108.0 108.2 108.4 108.6 108.9 109.3 109.3

1 9 6 1 ............... 109.7 110.3 110.4 110.7 111.0 - - - - - - -

55. Personal Care

Seasonal factors

1953 ..................

. • . . . 99.8 99.9 99.9 100.0 100.0 100.2 100.1

1954 .................. 100.2 100.2 99.9 99.9 99.7 99.8 99.9 99.9 100.0 100.0 100.2 100.1

1955 .................. 100.2 100.1 99.9 99.9 99.7 99.8 99.9 99.9 99.9 100.0 100.2 100.1

1956 .................. 100.2 100.1 99.9 100.0 99.7 99.8 100.0 99.9 99.9 100.0 100.2 100.0

1957 .................. 100.2 100.1 99.9 99.9 99.8 99.9 100.0 99.9 99.9 100.0 100.2 loo.o

1958 .................. 100.1 100.1 99.9 99.9 99.9 99.9 100.0 100.0 99.9 100.0 100.2 100.0

1959 .................. 100.1 100.0 99.9 99.9 99.9 100.0 100.0 100.0 99.9 100.1 100.2 100.0

1960 .................. 100.1 100.0 99.9 99.9 100.0 99.9 100.0 100.0 100.0 100.0 100.2 100.1

1961.................. 100.1 100.0 99.9 99.9 100.0 - - - - - - -

Subsequent^'® 100.1 100.0 99.9 99.9 100.0 99.9 100.0 100.0 100.0 100.0 100.2 100.1

Price indexes (1957-59 = 100)

1953 ..................

. . . . 87.9 87.9 88.0 88.1 88.4 88.5 88.7

1954 .................. 88.8 88.9 89.1 88.1 88.2 88.0 88.4 88.5 88.6 88.5 88.8 8 8 .7

1955 .................. 88.8 88.6 88.6 88.8 88.9 89.5 90.2 90.4 91.0 91.3 91.7 9 2 .0

1956 .................. 92.5 92.8 93.1 93.3 93.4 93.6 93.8 93.9 94.1 94.3 94.8 95.1

1957 .................. 95.3 95.7 95.9 96.3 96.3 9 7 i 0 97.3 97.5 97.7 98.5 98.9 99.1

1958 .................. 99.8 99.9 100.2 100.3 100.3 100.4 100.6 100.6 100.5 100.5 100.8 100.7

1959 .................. 101.0 101.3 101.2 101.5 102.0 102.3 102.5 102.8 103.1 103.4 103.6 103.7

1960 .................. 103.6 103.5 103.6 103.7 104.0 104.0 104.1 104.4 104.5 104.6 104.5 104.4

1961.................. 104.4 104.4 104.3 104.4 104.4 - - - - - - -

See footnotes at end of tab les.

41

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series-Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

56e Reading and recreation

Seasonal factors

1953 ..................

- - - - - 99.7 99.8 99.6 99.8 100.0 100.2 100.1

1954 .................. 100.4 100.1 100.3 100.2 99.9 99.7 99.7 99.6 99.8 100.0 100.1 100.1

1955 .................. 100.3 100.0 100.2 100.3 99.9 99.7 99.8 99.7 99.8 99.9 100.1 100.0

1956 .................. 100.4 1 0 0 J 100.2 100.3 99.9 99.7 99.8 99.7 99.9 99.8 100.0 99.9

1957 .................. 100.3 100.1 100.1 100.4 100.0 99.7 99.9 99.8 99.9 99.8 100.0 99.9

1958 .................. 100.2 100.1 100.1 100.4 100.0 99.8 99.9 99.8 99.9 99.7 100.0 99.9

1959 .................. 100.1 100.0 100.1 100.4 100.0 99.8 100.0 99.9 99.9 99.7 100.0 99.8

1960 .................. 100.1 100.1 100.2 100.3 100.1 99.8 100.0 99.9 99.9 99.8 100.0 99.9

1961.................. 100.0 100.0 100.2 100.4 100.1 - - - - - - -

Subsequent * 100.0 100.0 100.2 100.4 100.1 99.8 100.0 99.9 99.9 99.8 100.0 99.9

Price indexes (1957-59 = 100)

1953 .................. - - - - - 93.1 92.7 92.9 93.1 93.8 94.0 94.0

1954 .................. 93.9 93.3 93.4 92.0 91.9 91.9 92.4 92.1 92.0 92.3 92.2 92.1

1955 .................. 92.3 91.9 92.1 92.1 92.0 91.7 91.8 91.8 92.1 92.1 92.2 92.2

1956 .................. 92.7 92.8 93.0 93.4 93.4 92.9 93.0 93.2 93.6 93.7 94.1 94.4

1957 .................. 94.9 95.0 95.4 96.5 96.2 96.5 97.1 97.2 97.8 97.9 98.8 99.0

1958 .................. 100.7 100.7 101.0 101.0 100.7 100.8 10r .7 100.8 100.7 100.7 101.0 100.9

1959 .................. 101.0 101.1 101.3 101.6 101.7 102.0 1 J2.8 102.8 103.3 103.4 103.6 104.0

1960 .................. 103.9 104.1 104.4 104.6 104.8 104.6 .05.0 105.3 105.4 105.3 105.8 105.6

1961.................. 105.5 106.0 106.6 107.2 107.0 - - - - - - -

57. Other goods and services

Seasonal factors

1953 ................... _ . . - . 99.8 100.0 100.0 100.1 100.2 100.1 100.0

1954 .................. 100.0 99.9 99.9 99.8 99.8 99.9 100.0 100.0 100.1 100.2 100.1 100.0

1955 .................. 100.0 99.9 99.9 99.8 99.8 99.8 100.1 100.1 100.1 100.2 100.1 99.9

1956 .................. 100.0 99.9 99.9 99.8 99.8 99.8 100.1 100.2 100.2 100.2 100.1 99.9

1957 .................. 100.0 99.9 99.8 99.8 99.7 99.8 100.2 100.2 100.3 100.2 100.1 9 9.9

1958 .................. 99.9 99.8 99.8 99.8 99.7 99.8 100.2 100.2 100.3 100.2 100.2 99.9

1959 .................. 99.9 99.8 99.7 99.8 99.7 99.8 100.2 100.3 100.3 100.2 100.2 99.9

1960 .................. 99.9 99.8 99.7 99.8 99.7 99.8 100.2 100.3 100.3 100.2 100.2 100.0

1961.................. 99.9 99.8 99.7 99.7 99.7 - - - - - - -

Subsequent^ 99.9 99.8 99.7 99.7 99.7 99.8 100.2 100.3 100.3 100.2 100.2 100.0

Price indexes (1957-59 = 100)

1953 ..................

_ . . . . 92.8 92.9 92.9 93.0 94.0 94.3 94.4

1954 .................. 94.4 94.3 94.3 94.3 94.3 94.3 94.4 94.3 94.3 94.3 94.2 94.1

1955 .................. 94.1 94.0 94.0 94.0 94.1 94.1 94.4 94.5 94.7 94.7 94.7 94.7

1956 ............... . 94.8 94.9 95.1 95.3 95.4 95.6 95.9 95.8 96.3 96.5 96.7 96.8

1957 .................. 97.2 97.3 97.5 97.5 97.6 97.8 99.4 99.5 99.5 99.5 99.5 99.5

1958 .................. 99.7 99.7 99.8 99.8 99.8 99.8 99.8 99.8 99.8 99.9 99.9 9 9.9

1959 .................. 99.9 100.0 99.9 100.6 100.8 101.4 .102.7 102.9 103.2 103.3 103.3 103.4

1960 .................. 103.5 103.5 103.4 103.5 103.5 103.6 103.8 103.9 104.2 104.2 104.2 104.2

1961 . ............... 104.1 104.1 104.1 104.1 104.5 - - - - - - -

See footnotes at end of tab les.

42

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series—Continued

Jan. Feb. Mar. Apr. May June Ju ly Aug. Sept. Oct. Nov.

58. All items less food

Seasonal factors

1953 .................. 99.8 99.7 99.8 100.0 100.2 100.4 100.2

1954 .................. 100.1 100.1 100.1 99.8 99.8 99.8 99.8 99.8 100.0 100.2 100.3 100.2

1955 .................. 100.1 1Q0.1 100.1 99.8 99.8 99.8 99.8 99.8 100.0 100.2 100.4 100.2

1956 .................. 100.1 100.1 100.1 99.9 99.8 99.8 99.8 99.8 100.0 100.1 100.4 100.3

1957 .................. 100.1 100.1 100.1 99.9 99.8 99.8 99.8 99.8 100.0 100.2 100.4 100.2

1958 .................. 100.1 100.1 100.0 99.9 99.8 99.7 99.8 99.9 100.0 100.2 100.3 100.2

1959 .................. 100.1 100.1 100.0 99.9 99.8 99.7 99.8 99.9 100.0 100.1 100.3 100.2

1960 .................. 100.1 100.1 100.0 99.9 99.8 99.7 99.8 99.9 100.0 100.2 100.3 100.2

1961.................. 100.0 100.1 100.0 99.9 99.8 - - - - - - -

Subsequent ^ 100.0 100.1 100.0 99.9 99.8 99.7 99.8 99.9 100.0 100.2 100.3 100.2

Price indexes (1957-59 = 100)

1953 .................. . . . . . 92.1 92.2 92.4 92.7 93.1 93.1 93.0

1954 .................. 93.1 93.0 92.9 92.7 92.8 92.7 92.6 92.6 92.7 92.7 93.0 93.0

1955 .................. 92.8 92.8 92.8 92.5 92.6 92.7 92.8 92.9 93.2 93.5 93.9 93.8

1956 .................. 93.6 93.8 93.9 93.9 94.0 94.2 94.6 94.9 95.2 95.9 96.1 96.3

1957 .................. 96.5 96.9 97.3 97.5 97.5 97.7 97.9 98.1 98.4 98.6 99.4 99.3

1958 .................. 99.4 99.5 99.7 99.7 99.8 99.8 100.0 100.2 100.3 100.5 100.9 100.9

1959 .................. 100.8 101.0 101.2 101.4 101.5 101.7 102.0 102.2 102.6 103.0 103.3 103.3

1960 .................. 103.2 103.4 103.4 103.5 103.4 103.4 103.6 103.7 103.9 104.2 104.3 104.3

1961............... ... 104.1 104.3 104.4 104.3 104.5 -• - - - - - -

59. Commodities less food7

Seasonal factors

1956 ................... • . . . 99.5 99.7 99.7 100.0 100.4 100.7 100.5

1957 .................. 100.2 100.0 100.0 99.8 99.6 99.6 99.7 99.7 100.0 100.4 100.7 100.5

1958 .................. 100.1 100.1 100.0 99.8 99.6 99.6 99.7 99.7 100.0 100.4 100.6 100.5

1959 ............ : . 100.1 100.1 100.0 99.8 99.6 99.6 99.7 99.7 100.0 100.4 100.6 100.5

1960 .................. 100.1 100.1 99.9 99.7 99.6 99.6 99.7 99.8 100.0 100.4 100.6 100.5

1 9 6 1 .................. 100.1 100.1 99.9 99.7 99.6

Subsequent^ 100.1 100.1 99.9 99.7 99.6 99.6 99.7 99.8 100.0 100.4 100.6 100.5

Price indexes (1957-59 = 100)

1956 .................. _ . • 95.1 95.4 95.7 96.3 97.4 97.7 97.8

1957 .................. 97.9 98.1 98.5 98.7 98.4 98.5 98.8 98.7 99.1 99.3 100.2 100.0

1958 .................. 99.9 99.6 99.6 99.3 99.4 99.4 99.6 99.6 99.9 100.3 100.8 100.7

1959 .................. 100.4 100.5 100.7 100.8 100.8 101.0 101.3 101.5 101.8 102.4 102.6 102.5

1960 .................. 102.0 102.1 101.8 101.8 101.5 101.5 101.6 101.7 101.8 102.0 102.0 102.0

1 9 6 1 .................. 101.6 101.7 101.6 101.4 101.5

See footnotes at end of tab les.

43

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series—Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

60. Nondurable commodities less food7

Seasonal factors

1956 ..................

. . . 99.7 99.9 99.8 100.3 100.4 100.4 100.3

1957 .................. 99.9 99.8 100.0 99.8 99.7 99.7 99.9 99.9 100.3 100.4 100.5 100.3

1958 .................. 99.9 99.8 100.0 99.9 99.7 99.7 99.9 99.9 100.3 100.4 100.5 100.3

1959 .................. 99.9 99.8 100.0 99.8 99.7 99.7 99.9 99.9 100.3 100.4 100.5 100.3

1960 .................. 99.9 99.8 100.0 99.8 99.7 99.7 99.8 99.9 100.3 100.4 100.4 100.3

1961.................. 99.9 99.9 100.0 99.8 99.6

Subsequent 1 99.9 99.9 100.0 99.8 99.6 99.7 99.8 99.9 100.3 100.4 100.4 100.3

Price indexes (1957-59 = 100)

1956 ..................

- - - - - 95.9 96.3 96.5 97.3 97.6 97.9 98.0

1957 .................. 98.0 98.2 98.7 98.9 98.7 98.9 99.3 99.1 99.7 99.9 100.3 100.2

1958.................. 99.9 99.7 99.8 99.6 99.5 99.7 99.8 99.8 100.1 100.1 100.0 99.9

1959 .................. 99.7 100.0 100.3 100.3 100.3 100.6 100.9 101.3 101.9 102.3 102.3 102.4

1960 .................. 101.8 102.0 102.1 102.2 102,0 102.1 102.4 102.6 103.2 103.2 103.4 103.3

1961.................. 102.9 103.0 103.1 102.5 102.5

61. Durable commodities 7

Seasonal factors

1956 ................... . . - . _ 99.5 99.4 99.4 99.4 99.9 101.1 100.7

1957 .................. 100.5 100.3 99.9 99.9 99.6 99.5 99.4 99.4 99.4 99.9 101.1 100.7

1958 .................. 100.5 100.3 99.9 99.9 99.7 99.5 99.5 99.5 99.3 100.0 101.0 100.7

1959 .................. 100.4 100.3 99.8 99.9 99.7 99.6 99.5 99.5 99.4 100.0 100.9 100.7

1960 . ............... 100.4 100.3 99.8 99.8 99.7 99.6 99.5 99.5 99.3 100.1 100.9 100.7

19 61.................. 100.3 100.3 99.8 99.8 99.7

Subsequent1 100.3 100.3 99.8 99.8 99.7 99.6 99.5 99.5 ; 99.3 100.1 100,9 100.7

Price indexes (1957-59 = 100)

1 9 5 6 ................... _ . . . . 93.7 94.0 94.3 94.6 96.9 97.4 97.5

1957 ................... 97.7 97.7 98.0 98.2 97.7 97.8 97.7 97.8 98.0 98.0 100.1 99.5

1958 ................... 99.7 99.5 98.9 98.9 99.0 98.9 99.1 99.2 99.5 100.4 101.8 101.9

1959 ................... 101.4 101.3 101.5 101.6 101.7 101.8 102.1 101.8 101.8 102.5 103.0 102.7

1960 ................... 102.3 102.3 101.5 101.2 101.0 100.6 100.3 100.2 99.3 100.1 99.9 100.0

1961................... 99.5 99.5 99.2 99.9 100.0

See footnotes at end of tab les.

44

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series—Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

62. Transportation services7

Seasonal factors

1954..................

. . - ' - 99.9 100.1 100.0 99.9 99.8 99.6 99.4

1957 .................. 100.1 100.5 100.3 100.2 100.0 99.8 100.1 100.0 99.9 99.8 99.6 99.5

1958 .................. 100.1 100.5 100.3 100.2 100.0 99.8 100.0 100.0 99.9 99.8 99.7 99.5

1959 .................. 100.1 100.4 100.2 100.2 100.1 99.8 100.1 100.0 99.9 99.8 99.7 99.6

1960 .................. 100.1 100.4 100.2 100.2 100.1 99.8 100.0 99.9 99.8 99.8 99.8 99.6

1 9 6 1.................. 100.1 100.3 100.2 100.2 100.1

Subsequent ^ 100.1 100.3 100.2 100.2 100.1 99.8 e 100.0 99.9 99.8 99.8 99.8 99.6

Price indexes (1957-59 = 100)

1956 ..................

. - _ - 90.5 90.6 90.7 90.9 91.0 91.1 91.4

1957 .................. 92.2 93.3 93.3 93.8 94.0 94.2 95.3 95.9 96.1 96.4 96.8 97.0

1958 .................. 97.8 100.1 100.3 100.4 100.5 100.8 101.2 101.3 101.5 101.6 101.9 102.0

1959 .................. 103.1 103.1 103.2 103.6 104.0 103.8 104.7 104.9 105.2 105.4 105.4 105.7

1960 .................. 105.7 106.2 106.4 106.6 106.7 106.8 107.0 107.2 107.5 107.8 108.2 108.1

1961.................. 108.6 108.6 108.9 109.1 109.3

63. Sheets, muslin12

Seasonal factors

1957 ...............

- . 9 9 .2 _ „ 99.7 _ 101.1

1958 ............... - - 100.2 - - 99.2 - - 99.6 «* - 101.1

1959 ............... - - 100.2 - - 99.2 - - 99.5 - - 101.1

1960 ............... - - 100.2 - - 99.2 - - 99.5 - - 101.1

1961............... 100.3 99.2

Subsequent^ . .

100.3 . . 992 99.5 .

101.1

Price indexes (1957-59= 100)

1957 ............... _ _ _ . 101.8 _ . 102.3 102.6

1958 ............... - - 99.7 - - 97.8 - - 96.1 - 98.9

1959 ............... - - 99.1 - - 97.7 - - 100.2 - 101.9

1960 ............... - - 101.6 - - 101.4 - - 101.8 - 104.0

1961............... 103.2 102.3

See footnotes at end of tables.

45

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series—Continued

Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

64. Men’s year-round suits12

Seasonal factors

1957 ................... . - - - - 99.7 . - 100.2 - - 100.2

1958 ..................

- - 99.9 - - 9 9 .6 - - 100.3 - - 100.2

1959 .................. - - 99.9 - - 99.6 - - 100.3 - - 100.2

1960 ..................

- - 99.8 - - 99.6 - - 100.4 - - 100.2

1 9 61.................. 99.8 99.5

Subsequent** . . 99.8 - - 99.5 . . 100.4 . - 100.2

Price indexes (1957-59 = 100)

1957..................

_ . . - - 98.5 . . .99.2 . . 99.6

1958 ................... - - 100.0 - - 100.2 - - 100.7 - - 100.9

1 959 .................. - - 100.7 - - 100.6 - - 101.2 - - 101.3

1960 ................... - - 101.1 - - 101.8 - - 105.8 1 - 106.1

1961.................. 106.1 105.6

65. Tires12

Seasonal factors

1957 ................... _ _ 99.4 „ _ 99.6 _ 100.8

1958 ................... - - 100.1 - - 99.5 - - 99.6 - - 100.9

1959 ................... - - 100.1 - - 99.6 - - 99.3 - - 101.0

1960 .................. - - 100.1 - - 99.8 - - 99.2 - - 101.0

1 9 6 1 ................... 100.0 99.9

Subsequent** 100.0 99.9 99.2 101.0

Price indexes (1957-59 = 100)

1957 .................. _ _ . 95.4 _ 100.2 _ _ 101.6

1958 ................... - - 101.3 - - 99.7 - - 102.5 - - 105.6

1959 ................... - - 104.0 - - 103.9 - - 93.5 - - 92.9

1960 .................. - - 94.2 - - 93.2 - - 91.1 - - 91.5

1 9 6 1 ................... 87.3 86.1

See footnotes at end of tab les.

46

Digitized for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis
Seasonal Factors for Selected Consumer Price Index Series—Continued

Y ear Ja n . F eb . Mar. Apr. May June July Aug. Sep t. Oct. Nov. D ec.

6 6 . T e le v is io n * 12 s e t s

S easo n al facto rs

1 9 5 7 ....................

- - - - - 98.9 . . 100.1 - . 100.9

1958 .................... - - 100.0 - - 98.9 - - 100.2 - - 100.8

1959 .................... - - 100.0 - - 98.9 - - 100.2 - - 100.7

1960 .................... - - 100.1 - - 98.9 - - 100.3 - - 100.7

1 9 6 1 .................... 100.0 98.9

Subsequent ^ _ 100.0 _ _ 98.9 _ 100.3 . - 100.7

Price indexes (1957-59 = 100)

1957 ....................

. - _ _ 98.1 - -

98.3 - - 101.6

1958 .................... - - 100.4 - - 98.1 - - 100.9 - - 101.4

1959 .................... - - 101.2 - - 100.1 - - 102.5 - - 102.6

1960 .................... - - 102.6 - - 101.4 - - 102.6 - - 102.1

1961.................. 100.7 99.2

Obtained by adjusting the unforced season al factors from the computer calculations for the most recent 12 months 

of the computation period, to give a monthly average of 100.0. See page 2 of the text for comments about a sp ecial 

problem relating to the limitation in the use of these factors in the an alysis of current price trends after December 1963.

zPrice index not published because an adequate number of price quotations had not been collected. For the computation of se aso n al factors, an index was estim ated by applying the weighted average month-to-month price relative of 

all cities from which an adequate number of price quotations was collected each of the comparable months, to the index of the earlier month.

3

Price index not calculated until May 1953.

^See page 12 of the text for a discussion of problems relating to the items which are priced only during specified 

seaso n s.

**See page 2 of the text for comments about a sp ecial problem relating to the limitation in the use of these factors 

in the an aly sis of current price trends after December 1963.

^Covers only the period from July 1955 since the pricing season in 1953 was only 3 months, July through September.

^Covers only the period June 1956 through May 1961 since the price series has been calculated monthly only since 

December 1955.

o

These factors are not strictly applicable for current use. A revised procedure for calculating the price series was 

introduced in March 1963, while this bulletin was in preparation. R evised se aso n al factors are being calculated, which 

may be secured upon request. See page 11 of the text.

^Covers only the period June 1959 through May 1961 because of a change in sta tistic a l procedures for seaso n al 

items of apparel, introduced in June 1959. In the computation of season al factors, a recalculated but unpublished index, which incorporated the revised procedure, was used for the period from June 1959 back to December 1952.

^ Excludes footwear.

^ S e e page 13 of the text for a discussion of problems relating to this se rie s.

^ S e e page 14 of the text for a discussion of problems relating to se ries which are calculated only quarterly.

47

Digitized 

* U S. GOVERNMENT PRINTING OFFICE : 1963 0 — 689566

for FRASER 

http://fraser.stlouisfed.org/ 

Federal Reserve Bank of St. Louis