File layout for File 1 (Records are comma-delimited.  First line contains a
list of variables on the file.  The remaining lines contain the values of
the variables with fixed column positions.)

Variables on all files

DOEID    '4-digit identification number'                    Columns 1-4
NWEIGHT  'The Final Weight'                                 Columns 6-11
MQRESULT 'Mail Questionnaire Codes'                         Columns 13
REGIONC  'Census Region'                                    Columns 15
DIVISION 'Census Division'                                  Columns 17
LRGSTATE 'Four Largest States'                              Columns 19
CDD65    'Cooling Degree-Days to base 65, 1-04 TO 12-04'    Columns 21-24
HDD65    'Heating Degree-Days to base 65, 1-04 TO 12-04'    Columns 26-30
TYPEHUQ  'Type of Home: as report by Respondent'            Columns 32

Variables in File 1 only.

NUMFLRS  'Number Floors in Apartment Building'              Columns 34-35
ZNUMFLRS 'Imputation Flag for NUMFLRS'                      Columns 37
NUMAPTS  'Interviewer Rprted Num of Units in Apt Building'  Columns 39-41
ZNUMAPTS 'Imputation Flag for NUMAPTS'                      Columns 43
CNFRMHUQ 'Agreement with type of housing unit recorded'     Columns 45
ALTHUQ   'Alternative type of housing unit'                 Columns 47 
REVHUQ   'How final TYPEHUQ was determined'                 Columns 49
STORIES  'Reported Stories in Housing Unit'                 Columns 51-52
CELLAR   'Home Has Basement'                                Columns 54
ZCELLAR  'Imputation Flag for CELLAR'                       Columns 56
CRAWL    'Home Has Crawl Space'                             Columns 58
ZCRAWL   'Imputation Flag for CRAWL'                        Columns 60
CONCRETE 'Home Has Concrete Slab'                           Columns 62
ZCONCRET 'Imputation Flag for CONCRETE'                     Columns 64
PCTBSTHT 'Portion of basement that is heated'               Columns 66
ZPCTBSTH 'Imputation Flag for PCTBSTHT'                     Columns 68
BASEHEAT 'Basement/crawl Space heated'                      Columns 70
ZBASEHEA 'Imputation Flag for BASEHEAT'                     Columns 72
BASEUSE  'Apt occupants have exclusive use of basement'     Columns 74
ZBASEUSE 'Imputation Flag for BASEUSE'                      Columns 76
TYPEHUQ4 'Mobile home have permanently attached structures' Columns 78
ZTYPEHQ4 'Imputation Flag for TYPEHUQ4'                     Columns 80
NCOMBATH 'Number of Complete Baths'                         Columns 82
NHAFBATH 'Number of Half Baths'                             Columns 84
BEDROOMS 'Number of bedrooms'                               Columns 86
ZBEDROOM 'Imputation Flag for BEDROOMS'                     Columns 88
OTHROOMS 'Number of Other Rooms'                            Columns 90
ZOTHROOM 'Imputation Flag for OTHROOMS'                     Columns 92
ATTIC    'Home has attic'                                   Columns 94
ZATTIC   'Imputation Flag for ATTIC'                        Columns 96
ATTICFIN 'Part of the attic finished'                       Columns 98
ZATTICFI 'Imputation Flag for ATTICFIN'                     Columns 100
ATTCHEAT 'How much of the attic is warm'                    Columns 102
ZATTCHEA 'Imputation Flag for ATTCHEAT'                     Columns 104
PCTATTHT 'Portion of the attic is warm'                     Columns 106
ATTICUSE 'Apt occupants have exclusive use of attic'        Columns 108
ZATTICUS 'Imputation Flag for ATTICUSE'                     Columns 110
PRKGPLC1 'Home has Garage or Carport'                       Columns 112
GARSIZE  'Size of attached garage'                          Columns 114  
GARAGE1C 'One-Car attached Garage Present'                  Columns 116
GARAGE2C 'Two-Car attached Garage Present'                  Columns 118
GARAGE3C '3/More Car attached Garage present'               Columns 120
CARPORT  'Covered Carport Present'                          Columns 122
GARGLOC  'The garage is detached from or part of the home'  Columns 124
GARGHEAT 'The garage is warm enough to work'                Columns 126
ZGARGHEA 'Imputation Flag for GARGHEAT'                     Columns 128
PRKGPLC2 'Home has a detached Garage or Carport'            Columns 130
GARSIZ2A 'Size of first detached garage                     Columns 132  
GARSIZ2B 'Size of second detached garage                    Columns 134  
KOWNRENT 'Dwelling owned or rented'                         Columns 136
ZKOWNREN 'Imputation Flag for KOWNRENT'                     Columns 138
HUPROJ   'Reside in Public Housing Project'                 Columns 140
ZHUPROJ  'Imputation Flag for HUPROJ'                       Columns 142
RENTHELP 'Household receives a rent subsidy'                Columns 144
KOWNCOND 'Home is part of a condominium or cooperative'     Columns 146
CONDCOOP 'If KOWNCOND, is a condominium or cooperative'     Columns 148
ZCONDCOO 'Imputation Flag for CONDCOOP'                     Columns 150
YEARMADE 'Year Home Built'                                  Columns 152-153
ZYEARMAD 'Imputation Flag for YEARMADE'                     Columns 155 
OCCUPY   'Moved in After 12-31-98'                          Columns 157
OCCUPYY  'Year Moved into Home'                             Columns 159
OCCUPYM  'Month Moved Into Home'                            Columns 161-162
URBRUR   'Reported type of neighborhood'                    Columns 164
ZURBRUR  'Imputation Flag for URBRUR'                       Columns 166
UGASHERE 'Natural gas from underground pipe available'      Columns 168
ZUGASHER 'Imputation Flag for UGASHERE'                     Columns 170

Codebook for File 1

Variables DOEID, NWEIGHT, MQRESULT, REGIONC, DIVISION, LRGSTATE CDD65,
HDD65, and TYPEHUQ are on all files.

DOEID '4-digit identification number'                       Columns 1-4
     Included in all files
     Numerical Variable
     Variable length: 4

          The variable DOEID will be on all files.  Each respondent is assigned
     an unique value of DOEID.  It can be used to merge data from one file
     with data from another file.

     Minimum Value: 1,001

     Maximum Value: 5,852

NWEIGHT 'The Final Weight'                                  Columns 6-11
     Included in all files
     Numerical Variable
     Variable length: 6

     Minimum Value:   5,594
     Maximum Value: 105,485

          The sample design for RECS is not a simple random sample.
     Consequently, to estimate the number or percent of households/housing units
     with a certain characteristic, the sampling weight should be used.  The
     variable NWEIGHT is the sampling weight for the observation.  It is
     approximately the inverse of the probability of selection.  It gives
     the number of households that the response represents in the sample. 
     For most categorical variables, the codebooks contain both the
     unweighted frequency and the weighted frequency.  The unweighted
     frequency gives the number of observations, the weighted frequency
     gives survey estimate of the number of households/housing units for
     each possible value of the variable.  The weighted frequencies are
     rounded to the nearest 100,000 households.  This is the limit of the
     accuracy for RECS.  When the unweighted frequency is less than 10 or
     the weighted frequency is less than 150,000; then weighted frequency is
     suppressed.  A 'Q' is placed in the frequency to denote that the number
     is suppressed.  This indicates that there are too few observation upon
     which to determine an accurate estimate.

MQRESULT 'Mail Questionnaire Codes'                         Columns 13
     Included in all files

     Categorical Variable 
     Variable length 1

     Mail Questionnaire (MQ)
     Authorization Form (AF)
     Personal Interview (PI)

     1 = MQ Completed, AF Signed
     2 = MQ Completed, AF not required
     3 = MQ Completed, AF Not Signed
     7 = MQ returned after a PI was completed
     8 = PI was completed after MQ was returned
     9 = Not Applicable

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     1           166            3,900,000
     2             1                    Q
     3            76            1,700,000
     7            42            1,000,000
     8            24              600,000
     9         4,513           99,800,000

     Q = Data withheld because fewer than 10 observation in the category.

          When MQRESULT equals 1 2, or 3, the household and housing unit data
     was not obtained via a personal interview.  The data were obtained using a
     shortened mail questionnaire.  A hot-deck imputation procedure was used
     to match each mail respondent to a personal interview respondent.  The
     critical matching variables were FUELHEAT, FUELH2O, TYPECOOL, TYPEHUQ,
     and REGIONC.  Additional  variables used in a scoring function to

     determine the best match were MONEYPY, NHSLDMEM, VEHICLES, HHAGE, and

     TOTROOMS.  The remaining household/housing unit characteristics for the
     mail respondents were determined by the values of the matched personal
     interview respondent.  The energy consumption and expenditures data for

     the mail respondents was based upon data obtained from their energy
     suppliers.  It was not imputed using a hot deck procedure.

          Questionnaire data from personal interview respondents sometime is
     missing and needs to be imputed.  'Z' variables are used to indicate
     the presence of imputed data.  For example, if ZURBRUR = 0 then URBRUR
     was not imputed.  If ZURBRUR = 1 then URBRUR was imputed.

Census Division/Region:   A geographic area consisting of several States
defined by the U.S. Department of Commerce, Bureau of the Census.  The
States are grouped into nine divisions and four regions.

Region    Division            States 

Northeast New England         Connecticut, Maine, Massachusetts, 
                              New Hampshire, Vermont, and Rhode Island

          Middle Atlantic     New Jersey, New York, and Pennsylvania

Midwest   East North Central  Illinois, Indiana, Michigan, 
                              Ohio, and Wisconsin

          West North Central  Iowa, Kansas, Minnesota, Missouri,
                              Nebraska, North Dakota, and South Dakota

South     South Atlantic      Delaware, the District of Columbia,
                              Florida, Georgia, Maryland, North 
                              Carolina, South Carolina, Virginia,
                              and West Virginia 

          East South Central  Alabama, Kentucky, Mississippi, 
                              and Tennessee

          West South Central  Arkansas, Louisiana, Oklahoma, 
                              and Texas

West      Mountain            Arizona, Colorado, Idaho, Montana,

                              Nevada, New Mexico, Utah, and Wyoming

          Pacific             Alaska, California, Hawaii, Oregon, 
                              and Washington

REGIONC 'Census Region'                                     Columns 15
     Included in all files
     Categorical Variable 
     Variable length 1
     1 = Northeast Census Region
     2 = Midwest Census Region
     3 = South Census Region
     4 = West Census Region

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     1         1,087           20,300,000
     2         1,047           24,500,000
     3         1,489           38,900,000
     4         1,199           23,300,000

DIVISION 'Census Division'                                  Columns 17
     Included in all files
     Categorical Variable 
     Variable length 1
 
     1 = New England Census Division
     2 = Middle Atlantic Census Division
     3 = East North Central Census Division
     4 = West North Central Census Division
     5 = South Atlantic Census Division
     6 = East South Central Census Division
     7 = West South Central Census Division
     8 = Mountain Census Division
     9 = Pacific Census Division

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     1         396             5,400,000
     2         691            14,800,000
     3         681            17,100,000
     4         366             7,400,000
     5         626            20,300,000
     6         409             6,800,000
     7         454            11,800,000
     8         407             6,700,000
     9         792            16,600,000

LRGSTATE 'Four Largest States'                              Columns 19
     Included in all files
     Categorical Variable 
     Variable length 1

     0 = Other
     1 = New York State
     2 = California
     3 = Texas
     4 = Florida

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0         3,484          73,600,000
     1           328           7,100,000
     2           541          12,300,000 
     3           289           7,700,000
     4           180           6,300,000

CDD65 and HDD65 are weather data.  The values of CDD65 and HDD65 were based
upon data obtained from the NOAA.  A random error was added to both HDD65
and CDD65 to mask the location of the weather station from which the data
was obtained.

CDD65 'Cooling Degree-Days to base 65, 1-04 TO 12-04'       Columns 21-24
     Included in all files
     Numerical Variable 
     Variable length 4

     Minimum Value:     0
     Maximum Value: 5,161

HDD65 'Heating Degree-Days to base 65, 1-04 TO 12-04'       Columns 26-30
     Included in all files
     Numerical Variable 
     Variable length 5

     Minimum Value:      0
     Maximum Value: 10,045

          Cooling degree days are the number of degrees the average daily
     temperature (ADT) is above the base temperature.  Heating degree days
     are the number of degrees the ADT is below the base temperature.  To
     calculate daily degree days (base 65 degrees):

          ADT = (daily high + daily low)/2

          CDD(daily)     = 0            if ADT <= 65
                         = ADT - 65     if ADT > 65

          HDD(daily)     = 0            if ADT >= 65
                         = 65 - ADT     if ADT < 65.

          Annual degrees days are calculated by summing the daily degree days. 
     The .5 is carried over in the summation.  The total is rounded up after
     the summation.

TYPEHUQ 'Type of Home: as report by Respondent'             Columns 32
     Included in all files
     Categorical Variable
     Variable length: 1
     Question (A-1) 
          different than RECS97
     Variable was constructed form responses to questions
          A-1, A-3, A-3a, and A-3a1
     
          There is a fine line between the definitions of various types of
     housing units. The distinction between a single-family attached unit
     and a unit in an apartment building is particularly complex. The 1997
     RECS relied more heavily of the respondent's perception of the housing
     type.  The 2001 RECS placed more emphasis on the interviewer's perception.

     1 = Mobile Home
     2 = Single-Family detached
     3 = Single-Family Attached
     4 = Apartment in Building containing 2-4 units
     5 = Apartment in Building Containing 5 or more units

               Number         Weighted
               Of             Number of
     Value     Observations   Households

     1           325           6,800,000
     2         2,935          63,100,000
     3           426          10,600,000 
     4           444           9,500,000
     5           692          17,000,000

The remaining variables are on File 1 only.

NUMFLRS  'Number Floors in Apartment Building'              Columns 34-35
     Numerical Variable 
     Variable length  2
     Question A-2

     15 = 8 or more floors
     99 = Not Applicable

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     1 to 7      626          15,500,000
          15      66           1,500,000 
          99   4,130          90,000,000

ZNUMFLRS  'Imputation Flag for NUMFLRS'                     Columns 37
     Categorical Variable
     Variable length: 1
     
   0 = Not Imputed
   2 = EIA Imputed

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0         4,821         107,000,000
     2             1                   Q
Q = Data withheld because fewer than 10 observation in the category.

NUMAPTS 'Interviewer Rprted Num of Units in Apt Building'   Columns 39-41
     Numerical Variable
     Variable length 3

     100 = 51 or more units
     999 = Not Applicable

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     5 to 50     537           13,300,000
     100         155            3,700,000
     999       4,130           90,000,000

ZNUMAPTS 'Imputation Flag for NUMAPTS'                      Columns 43
     Categorical Variable
     Variable length: 1

   0 = Not Imputed
   2 = EIA Imputed

               Number         Weighted
               Of             Number of
     Value     Observations   Households
      0        4,768         105,700,000
      2           54           1,300,000

CNFRMHUQ 'Agreement with type of housing unit recorded'     Columns 45
     Categorical Variable
     Variable length: 1
     Question A-3

     0 = No

     1 = Yes
     6 = Don't know

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0            36             800,000
     1         4,785         106,200,000
     6             1                   Q

Q = Data withheld because fewer than 10 observation in the category.

ALTHUQ   'Alternative type of housing unit'                 Columns 47
     Categorical Variable
     Variable length: 1
     Question A-3a

     1 = a Mobile home
     2 = Single-family detached house
     3 = a Single-family attached house
     4 = an Apartment building with 2-4 units
     5 = an Apartment building 5 or more units
     6 = Don't know 
     9 = Not Applicable

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     1             1                   Q
     2            21             500,000
     3             2                   Q
     4             9                   Q
     5             2                   Q
     6             1                   Q
     9         4,786         106,200,000

                     
REVHUQ   'How final TYPEHUQ was determined'                 Columns 49
     Categorical Variable
     Variable length: 1
     Question A-3a1

     1 = Use household's Definition
     2 = Use RECS Definition 
     9 = Not Applicable

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     1            19             400,000
     2            17             300,000
     9         4,786         106,200,000

STORIES  'Reported Stories in Housing Unit'                 Columns 51-52
     Categorical Variable 
     Variable length  1
     Question A-4   

     1 = One-Story
     2 = Two-Stories
     3 = Three or More Stories
     4 = Split-Level
     5 = Some Other Type
     9 = Not Applicable

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     10        2,210          48,700,000
     20        1,403          30,400,000
     31          119           2,400,000
     32           10             300,000
     40           61           1,300,000
     50            2                   Q
     99        1,017          23,800,000
     
     Q = Data withheld because fewer than 10 observation in the category.

CELLAR  'Home Has Basement'                                 Columns 54
     Categorical Variable 
     Variable length  1
     Question A-5-1

     0 = No
     1 = Yes
     9 = Not Applicable

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0         1,917           44,000,000
     1         1,888           39,100,000
     9         1,017           23,800,000

ZCELLAR  'Imputation Flag for CELLAR'                       Columns 56
     Categorical Variable
     Variable length: 1
     
   0 = Not Imputed
   2 = EIA Imputed

               Number         Weighted
               Of             Number of
     Value     Observations   Households
      0        4,810         106,800,000
      2           12             200,000
                  

CRAWL  'Home Has Crawl Space'                               Columns 58
     Categorical Variable 
     Variable length  1
     Question A-5-2

     0 = No
     1 = Yes
     9 = Not Applicable

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0         2,673           59,000,000
     1         1,132           24,200,000
     9         1,017           23,800,000

ZCRAWL  'Imputation Flag for CRAWL'                         Columns 60
     Categorical Variable
     Variable length: 1

   0 = Not Imputed
   2 = EIA Imputed

               Number         Weighted
               Of             Number of
     Value     Observations   Households
       0       4,801         106,500,000
       2          21             400,000

CONCRETE 'Home Has Concrete Slab'                           Columns 62
     Categorical Variable 
     Variable length  1
     Question A-5-3

     0 = No
     1 = Yes
     9 = Not Applicable

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0         2,569           53,700,000
     1         1,236           29,500,000
     9         1,017           23,800,000

ZCONCRET 'Imputation Flag for CONCRETE'                     Columns 64
     Categorical Variable
     Variable length: 1

   0 = Not Imputed
   2 = EIA Imputed

               Number         Weighted
               Of             Number of
     Value     Observations   Households
      0        4,784         106,200,000
      2           38             800,000

PCTBSTHT 'Portion of basement that is heated'               Columns 66
     Categorical Variable 
     Variable length  1
     Question A-5a1

     0 = Very little (1-4%)
     1 = Some (5-33%)
     2 = About half (34-66%)
     3 = About three-quarters (67-95%)
     4 = Most of it (96-99%)
     9 = not applicable
       
               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0            26             600,000
     1            70           1,400,000
     2           121           2,500,000
     3            64           1,100,000
     4            22             500,000
     9         4,519         100,800,000

ZPCTBSTH 'Imputation Flag for PCTBSTHT'                     Columns 68
     Categorical Variable 
     Variable length  1

   0 = Not Imputed
   2 = EIA Imputed

               Number         Weighted
               Of             Number of
     Value     Observations   Households
      0        4,820         107,000,000
      2            2                   Q                     

Q = Data withheld because fewer than 10 observation in the category.

BASEHEAT 'Basement/crawl Space heated'                      Columns 70
     Categorical Variable 
     Variable length  1
     Question A-5a

     0 = None
     1 = All
     2 = Part
     9 = Not applicable

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0           521          10,800,000

     1         1,061          22,100,000
     2           303           6,200,000
     9         2,937          67,900,000

ZBASEHEA 'Imputation Flag for BASEHEAT'                     Columns 72
     Categorical Variable 
     Variable length  1

   0 = Not Imputed
   2 = EIA Imputed

               Number         Weighted
               Of             Number of

     Value     Observations   Households
      0        4,805         106,600,000
      2           17             300,000

BASEUSE  'Apt occupants have exclusive use of basement'     Columns 74 
     Categorical Variable 
     Variable length  1
     Question A-5b

     0 = None
     1 = All
     2 = Part
     6 = Don't know 
     9 = Not applicable

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0            59           1,300,000
     1         1,767          36,700,000
     2            54           1,000,000
     6             8                   Q
     9         2,934          67,800,000
 Q = Data withheld because fewer than 10 observation in the category.

ZBASEUSE 'Imputation Flag for BASEUSE'                      Columns 76 
     Categorical Variable 
     Variable length  1

   0 = Not Imputed
   2 = EIA Imputed

               Number         Weighted
               Of             Number of
     Value     Observations   Households
      0        4,813         106,800,000
      2            9                   Q            
Q = Data withheld because fewer than 10 observation in the category.

TYPEHUQ4 'Mobile home have permanently attached structures' Columns 78
     Categorical Variable 
     Variable length  1
     Question A-6

     0 = No
     1 = Yes
     9 = Not applicable
               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0           266           5,700,000
     1            59           1,100,000
     9         4,497         100,200,000
                     
ZTYPEHQ4 'Imputation Flag for TYPEHUQ4'                     Columns 80
     Categorical Variable 
     Variable length  1

   0 = Not Imputed
   2 = EIA Imputed

               Number         Weighted
               Of             Number of
     Value     Observations   Households
      0        4,820         107,000,000
      2            2                   Q    
Q = Data withheld because fewer than 10 observation in the category.

NCOMBATH 'Number of Complete Baths'                         Columns 82
     Numerical Variable 
     Variable length 1
     Question A-7

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0            16             300,000
     1         2,703          58,200,000
     2         1,792          41,200,000
     3           263           6,200,000
     4            40             900,000
     5             6                   Q
     7             2                   Q
                     
     Q = Data withheld because fewer than 10 observation in the category.

NHAFBATH 'Number of Half Baths'                             Columns 84
     Numerical Variable 
     Variable length  1
     Question A-8
 
               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0         3,486          76,600,000
     1         1,233          27,900,000
     2           101           2,400,000
     3             2                   Q
    
     Q = Data withheld because fewer than 10 observation in the category.

BEDROOMS 'Number of bedrooms'                               Columns 86
     Numerical Variable 
     Variable length  1
     Question A-9

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0            36             900,000
     1           530          12,700,000
     2         1,339          29,500,000
     3         1,996          44,100,000
     4           765          16,500,000
     5           125           2,700,000
     6            26             600,000
     7             4                   Q
     9             1                   Q
                     
     Q = Data withheld because fewer than 10 observation in the category.

ZBEDROOM 'Imputation Flag for BEDROOMS'                     Columns 88
     Categorical Variable 
     Variable length  1

   0 = Not Imputed
   1 = Imputed

               Number         Weighted
               Of             Number of
     Value     Observations   Households

      0        4,821         107,000,000
      1            1                   Q

Q = Data withheld because fewer than 10 observation in the category.

OTHROOMS 'Number of Other Rooms'                            Columns 90

     Numerical Variable 
     Variable length  1
     Question A-10

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     1           186           4,200,000
     2         1,773          39,400,000
     3         1,576          35,000,000
     4           844          18,400,000
     5           312           6,900,000
     6            81           1,800,000
     7            36             900,000
     8             8                   Q
     9             6                   Q
                 

     Q = Data withheld because fewer than 10 observation in the category.

ZOTHROOM 'Imputation Flag for OTHROOMS'                     Columns 92
     Categorical Variable 
     Variable length  1
 
   0 = Not Imputed
   1 = Imputed

              Number         Weighted
               Of             Number of
     Value     Observations   Households
      0        4,820         106,900,000
      1            2                   Q     

Q = Data withheld because fewer than 10 observation in the category.

ATTIC    'Home has attic'                                   Columns 94
     Categorical Variable 
     Variable length  1
     Question A-11

     0 = No
     1 = Yes
     9 = Not applicable

               Number         Weighted
               Of             Number of
     Value     Observations   Households 
     0         2,708          58,600,000
     1         1,097          24,600,000
     9         1,017          23,800,000

ZATTIC   'Imputation Flag for ATTIC'                        Columns 96
     Categorical Variable 
     Variable length  1

   0 = Not Imputed
   2 = EIA Imputed

               Number         Weighted
               Of             Number of
     Value     Observations   Households 
       0       4,812         106,800,000
       2          10             200,000
     

ATTICFIN 'Part of the attic finished'                       Columns 98
     Categorical Variable 
     Variable length  1
     Question A-11a

     0 = No
     1 = Yes
     9 = Not applicable

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0           937          21,100,000
     1           160           3,500,000
     9         3,725          82,400,000

ZATTICFI 'Imputation Flag for ATTICFIN'                     Columns 100
     Categorical Variable 
     Variable length  1
 
   0 = Not Imputed
   2 = EIA Imputed

               Number         Weighted
               Of             Number of
     Value     Observations   Households
      0        4,816         106,900,000
      2            6                   Q        

Q = Data withheld because fewer than 10 observation in the category.

ATTCHEAT 'How much of the attic is warm'                    Columns 102
     Categorical Variable 
     Variable length  1
     Question A-11b

     0 = None 
     1 = All
     2 = Part 
     9 = Not applicable

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0           889          20,100,000
     1           125           2,700,000
     2            83           1,800,000
     9         3,725          82,400,000

ZATTCHEA 'Imputation Flag for ATTCHEAT'                     Columns 104
     Categorical Variable 
     Variable length  1

   0 = Not Imputed
   2 = EIA Imputed

               Number         Weighted
               Of             Number of
     Value     Observations   Households

      0        4,790         106,300,000
      2           32             600,000
                     

PCTATTHT 'Portion of the attic is warm'                     Columns 106 
     Categorical Variable 
     Variable length  1
     Question A-11b1

     0 = Very little (1-4%)
     1 = Some (5-33%) 
     2 = About half (34-66%) 
     3 = About three-quarters (67-95%) 
     4 = Most of it (96-99%) 
     9 = Not applicable

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0            33             700,000
     1            24             600,000
     2            18             300,000
     3             5                   Q
     4             3                   Q
     9         4,739         105,200,000
Q = Data withheld because fewer than 10 observation in the category.

ATTICUSE 'Apt occupants have exclusive use of attic'        Columns 108
     Categorical Variable 
     Variable length  1
     Question A-11c

     0 = None 
     1 = All
     2 = Part 
     9 = Not applicable

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0            32             500,000
     1         1,054          23,800,000
     2            11             200,000
     9         3,725          82,400,000

ZATTICUS 'Imputation Flag for ATTICUSE'                     Columns 110
     Categorical Variable 
     Variable length  1

   0 = Not Imputed
   2 = EIA Imputed

               Number         Weighted
               Of             Number of
     Value     Observations   Households
      0        4,818         106,900,000
      2            4                   Q           

Q = Data withheld because fewer than 10 observation in the category.

PRKGPLC1 'Home has Garage or Carport'                       Columns 112

     Categorical Variable 
     Variable length  1
     Question A-12

     0 = No
     1 = Yes
     9 = Not Applicable

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0         2,058          43,300,000
     1         1,628          37,100,000
     9         1,136          26,500,000

GARSIZE  'Size of attached garage'                          Columns 114
     Categorical Variable 
     Variable length  1
     Question A-

   1 = One-Car Garage
   2 = Two-Car Garage
   3 = Three-or-More-Car Garage
   9 = No Answer

               Number         Weighted
               Of             Number of
     Value     Observations   Households

      1          476          10,800,000
      2        1,060          24,100,000
      3           92           2,300,000
      9        3,194          69,800,000
              
GARAGE1C 'One-Car attached Garage Present'                  Columns 116
     Categorical Variable 
     Variable length  1
     Question A-12a-1

     0 = No
     1 = Yes

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0         4,346          96,200,000
     1           476          10,800,000

GARAGE2C 'Two-Car attached Garage Present'                  Columns 118     
     Categorical Variable 
     Variable length  1
     Question A-12a-2

     0 = No
     1 = Yes

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0         3,762          82,900,000
     1         1,060          24,100,000

GARAGE3C '3/More Car attached Garage present'               Columns 120     
     Categorical Variable 
     Variable length  1
     Question A-12a-3

     0 = No
     1 = Yes

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0         4,730         104,700,000
     1            92           2,300,000
                     
     
CARPORT  'Covered Carport Present'                          Columns 122
     Categorical Variable 
     Variable length  1
     Question A-12a-4

     0 = No
     1 = Yes

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0         4,627         102,700,000
     1           195           4,300,000
   
GARGLOC  'The garage is detached from or part of the home'  Columns 124
     Categorical Variable 
     Variable length  1
     Question A-12a1

     1 = Detached from the home
     2 = Part of the basement 
     3 = Part of the first floor 
     4 = Some other location

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     1           229           4,700,000
     2         1,352          31,400,000
     3            47           1,000,000
     9         3,194          69,800,000

GARGHEAT 'The garage is warm enough to work'                 Columns 126  
     Categorical Variable 
     Variable length  1
     Question A-2a2

     0 = No
     1 = Yes
     9 = Not applicable

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0         1,196          26,900,000
     1           426          10,200,000
     9         3,200          69,900,000

ZGARGHEA 'Imputation Flag for GARGHEAT'                      Columns 128  
     Categorical Variable 
     Variable length  1

   0 = Not Imputed
   2 = EIA Imputed
               Number         Weighted
               Of             Number of
     Value     Observations   Households
      0        4,815         106,800,000
      2            7                   Q
               
Q = Data withheld because fewer than 10 observation in the category.

PRKGPLC2 'Home has a detached Garage or Carport'            Columns 130
     Categorical Variable 
     Variable length  1
     Question A-

   1 = Yes
   0 = No
   6 = Don't Know
   8 = Refused
   9 = No Answer

               Number         Weighted
               Of             Number of
     Value     Observations   Households
      0        1,036          22,100,000
      1        1,022          21,200,000
      9        2,764          63,600,000

GARSIZ2A 'Size of first detached garage                     Columns 132  
     Categorical Variable 
     Variable length  1
     Question A-

   1 = One-Car Garage
   2 = Two-Car Garage
   3 = Three-or-More-Car Garage
   4 = Carport
   6 = Don't Know
   8 = Refused
   9 = No Answer

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     1           337           6,900,000
     2           430           8,700,000
     3            66           1,400,000
     4           189           4,200,000
     9         3,800          85,800,000

GARSIZ2B 'Size of second detached garage                    Columns 134
     Categorical Variable 
     Variable length  1
     Question A-

   1 = One-Car Garage
   2 = Two-Car Garage
   3 = Three-or-More-Car Garage
   4 = Carport
   6 = Don't Know
   8 = Refused
   9 = No Answer

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     1            1                    Q
     3            1                    Q
     4            6                    Q
     9         4814          106,800,000
  
Q = Data withheld because fewer than 10 observation in the category.

KOWNRENT 'Dwelling owned or rented'                         Columns 136
     Categorical Variable 
     Variable length  1
     Question A-13A

     1 = Own/Buying
     2 = Rent
     3 = Occupied Without Payment of Rent

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     1         3,310          72,700,000
     2         1,448          33,000,000
     3            64           1,300,000

ZKOWNREN 'Imputation Flag for KOWNRENT'                     Columns 138
     Categorical Variable 
     Variable length  1
   
   0 = Not Imputed
   1 = Imputed

               Number         Weighted
               Of             Number of
     Value     Observations   Households
      0        4,819         106,900,000
      1            3                   Q

  Q = Data withheld because fewer than 10 observation in the category.

HUPROJ  'Reside in Public Housing Project'                  Columns 140
     Categorical Variable 
     Variable length  1
     Question A-13a

     0 = No
     1 = Yes
     6 = Don't know
     9 = Not Applicable

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0         1,325          30,000,000
     1           173           3,900,000
     6            14             400,000
     9         3,310          72,700,000

ZHUPROJ 'Reside in Public Housing Project'                  Columns 142
     Categorical Variable 
     Variable length  1
 
   0 = Not Imputed
   2 = EIA Imputed

              Number         Weighted
               Of             Number of
     Value     Observations   Households
      0        4,819         106,900,000
      2            3                   Q
         
Q = Data withheld because fewer than 10 observation in the category.

RENTHELP 'Household receives a rent subsidy'                Columns 144
     Categorical Variable 
     Variable length  1
     Question A-13a1

     0 = No
     1 = Yes
     6 = Don't know
     9 = Not Applicable

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0         1,227          27,900,000
     1           105           2,300,000
     6             5                   Q
     9         3,485          76,700,000
 Q = Data withheld because fewer than 10 observation in the category.

KOWNCOND 'Home is part of a condominium or cooperative'     Columns 146
     Categorical Variable 
     Variable length  1
     Question A-14

     0 = No
     1 = Yes
     6 = Don't know

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0         4,626         101,600,000
     1           174           4,800,000
     6            22             500,000

CONDCOOP 'If KOWNCOND, is a condominium or cooperative'     Columns 148
     Categorical Variable 
     Variable length  1
     Question A-14a

     1 = Condominium
     2 = Cooperative
     9 = Not Applicable

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     1          129      3,700,000

     2           45      1,100,000
     9        4,648    102,200,000

ZCONDCOO 'Imputation Flag for CONDCOOP'                     Columns 150
     Categorical Variable 
     Variable length  1
  
   0 = Not Imputed
   2 = EIA Imputed

              Number         Weighted
               Of             Number of
     Value     Observations   Households
      0        4,821         107,000,000
      2            1                   Q
       
Q = Data withheld because fewer than 10 observation in the category.

YEARMADE 'Year Home Built'                                  Columns 152-153 
                                                                                         Categorical Variable 
     Variable length  2
     Question A-15

     1 = Before 1940
     2 = 1940-49
     3 = 1950-59
     4 = 1960-69
     5 = 1970-79
     6 = 1980
     7 = 1981-89
     8 = 1990
     9 = 1991-95
     10 = 1996-98
     11 = 1999
     12 = 2000
     13 = 2001
     96 = Don't know
     
               Number         Weighted
               Of             Number of
     Value     Observations   Households
     1           922          19,000,000
     2           362           7,600,000
     3           666          14,200,000
     4           636          13,800,000
     5           853          18,800,000
     6           128           3,000,000
     7           649          15,300,000
     8            79           1,900,000
     9           279           7,300,000
     10          157           4,100,000
     11           54           1,200,000
     12           31             800,000
     13            6                   Q

Q = Data withheld because fewer than 10 observation in the category.

ZYEARMAD 'Imputation Flag for YEARMADE'                     Columns 155
     Categorical Variable 
     Variable length  1
  
   0 = Not Imputed
   1 = Imputed

              Number         Weighted
               Of             Number of
     Value     Observations   Households
      0        4,339          96,400,000
      1          483          10,500,000

OCCUPY  'Moved in After 12-31-98'                           Columns 157

     Categorical Variable 
     Variable length  1
     Question A-15a

     0 = No
     1 = Yes
     6 = Don't Know
     

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0         3,509          77,200,000
     1         1,311          29,800,000
     6             2                   Q

Q = Data withheld because fewer than 10 observation in the category.

OCCUPYY  'Year Moved into Home'                             Columns 159
     Categorical Variable 
     Variable length  1
     Question A-15a1

     1 = 1999   
     2 = 2000   
     3 = 2001   
     6 = Don't Know    
     9 = Not Applicable    

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     1           450           9,900,000
     2           566          13,100,000
     3           292           6,700,000
     6             3                   Q
     9         3,511          77,200,000

     Q = Data withheld because fewer than 10 observation in the category.

OCCUPYM 'Month Moved Into Home'                             Columns 161-162
     Categorical Variable 
     Variable length 2
     Question A-15a2

     1 = January
     2 = February
     3 = March
     4 = April
     5 = May
     6 = June
     7 = July
     8 = August
     9 = September
     10 = October
     11 = November
     12 = December
     96 = Don't Know
     99 = Not Applicable

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     1           108           2,400,000
     2           100           2,300,000
     3           120           2,800,000
     4           119           2,600,000
     5           110           2,600,000
     6           138           3,200,000
     7            92           1,900,000
     8           128           3,000,000
     9           109           2,600,000
     10           94           2,000,000
     11           93           2,200,000
     12           89           2,000,000
     96           11             200,000
     99        3,511          77,200,000

URBRUR 'Reported type of neighborhood'                      Columns 164
     Categorical Variable 
     Variable length  1
     Question A-16

          different than RECS93
          (1993 RECS used interviewer observation)

     1 = City
     2 = Town
     3 = Suburbs
     4 = Rural

               Number         Weighted
               Of             Number of
     Value     Observations   Households
     1         2,215          49,900,000
     2           866          18,000,000
     3           840          21,200,000
     4           901          17,900,000

ZURBRUR 'Imputation Flag for URBRUR'                        Columns 166
     Categorical Variable 
     Variable length  1
  
   0 = Not Imputed
   1 = Imputed

               Number         Weighted
               Of             Number of
     Value     Observations   Households
      0        4,815         106,800,000
      1            7                   Q
           
Q = Data withheld because fewer than 10 observation in the category.

UGASHERE 'Natural gas from underground pipe available'      Columns 168
     Categorical Variable 
     Variable length  1
     Question A-17

     0 = No
     1 = Yes
     
               Number         Weighted
               Of             Number of
     Value     Observations   Households
     0         1,391          29,300,000
     1         3,431          77,700,000

ZUGASHER 'Imputation Flag for UGASHERE'                     Columns 170
     Categorical Variable 
     Variable length  1

     Categorical Variable 
     Variable length  1
 
   0 = Not Imputed
   1 = Imputed
   2 = EIA Imputed

               Number         Weighted
               Of             Number of
     Value     Observations   Households
      0        4,636         102,900,000
      1          184           4,100,000
      2            2                   Q

Q = Data withheld because fewer than 10 observation in the category.