## Figure 6: Transition of the total sum of cash earnings by employment form

During the period from 1993 to 2012, the wages for full-time workers and part-time workers showed almost no growth. The increased ratio of part-time workers led to the decrease of the total sum of cash earnings.

(1) Transition of the total sum of cash earnings by employment form

(3) Breakdown of the total sum of cash earnings by employment form

(1) Source: Prepared by the Office of Counselor for Labour Policy, MHLW, based on the "Monthly Labour Survey" Ministry of Health, Labour and Welfare

(Note) 1) Total of the surveyed industries; business establishments with 5 or more employees.

2) These figures are real-valued ones, which are modified to enable time-series linkage, and which are obtained by multiplying the index by a standard value (average in 2010).

(2) Source: Estimated by the Office of Counselor for Labour Policy, MHLW, based on the "Monthly Labour Survey" Ministry of Health, Labour and Welfare

(1) This indicates the degree of influence made by the 3 factors (increase or decrease of the total sum of cash earnings of full-time workers, that of cash earnings of part-time workers, and changes of composition ratios of full-time workers and part-time workers) against the ratio of increase or decrease of the total sum of cash earnings of the entire workers regularly employed including both the full-time workers and part-time workers. The specific breakdown method is in accordance with the following formula:

(∗ represents the all workers, the suffix n represents full-time workers, p represents part-time workers and $ \Delta $ represents difference with the last year.) r: The composition ratio of part-time workers

Under the graph, further breakdown is performed as follows: $\Delta W_{n}=\Delta$ (scheduled wages of full-time workers) + $\Delta$ (non-scheduled wages of full-time workers) + $\Delta$ (special wages of full-time workers)

2) Total of the surveyed industries; business establishments with 5 or more employees.

3) For each of the all workers regularly employed, full-time workers and part-time workers, real-values, which are modified to enable time-series connection, are calculated by multiplying the index of total sum of cash earnings by a standard value, and then the composition ratio of part-time workers is estimated on the basis of such real values.

4) The calculation was made in accordance with the following formulas:

Non-scheduled wage = Contractual wage - Scheduled wage; Special wage = Total cash wage - Contractual wage.

5) For the factors of increase and decrease in each of the periods from 1993 to 2012, from 1997 to 2012, from 1993 to 1997, from 1997 to 2008 and from 2008 to 2012, the figures are annualized.

Prepared by the Office of Counselor for Labour Policy, MHLW, based on the "Monthly Labour Survey" Ministry of Health, Labour and Welfare

Table 7: Transition of monthly working hours

1) The figures are real-valued ones, which are modified to enable time-series connection, and which are obtained by multiplying the indexes (the index of total sum of cash earnings, index of contractual wages, and index of scheduled wages) by each standard value (average in 2010).

2) The calculation was made in accordance with the following formulas: Non-scheduled wage = Contractual wage - Scheduled wage; Special wage = Total cash wage - Contractual wage.

3) The analysis by employment form has been made in and after 1993.

In 2012, all of the total actual working hours, scheduled working hours and extra working hours increased.

Year/period	Total actual working hours	(Part-time workers)	Scheduled working hours	Extra working hours
Hours	2007 Year	150.7	170.6	94.0	139.7
08	149.3	169.3	92.6	138.6
09	144.4	164.7	90.2	135.2
10	146.2	167.4	91.3	136.2
12	145.6	167.2	90.8	135.6
12	147.1	169.2	92.1	136.7
Year-on-year
2007 Year	-0.7	0.0	-1.9	-0.8	1.3
08	-1.2	-0.9	-1.7	-1.1	-1.5
09	-2.8	-2.5	-2.3	-1.8	-14.9
10	1.5	1.8	1.3	0.8	10.1
12	-0.2	-0.1	-0.3	-0.3	1.0
12	0.5	0.8	1.1	0.5	0.6
Comparison to the same period last year
2011 I	-0.5	-0.2	-0.1	-0.7	2.8
II	-0.5	-0.4	-0.7	-0.5	-1.1
III	-0.2	0.1	-0.4	-0.2	0.2
IV	0.1	0.3	-0.3	0.0	2.0
12 I	1.6	1.7	2.3	1.7	1.8
II	1.0	1.3	1.4	0.7	4.0
III	-0.8	-0.7	0.2	-0.9	-0.9
IV	0.5	0.9	0.6	0.6	-2.5
13 I	-2.9	-2.6	-2.0	-3.2	-1.6

Source: "Monthly Labour Survey" Ministry of Health, Labour and Welfare

(Note) 1) Total of the surveyed industries; business establishments with 5 or more employees.

2) The rates of increase or decrease, including year-on-year ones, are the values with modification to such matters as the gap resulted from change in establishments extracted from the survey subjects, and do not always match with the results of calculation based on real numbers.