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Notes on the results of Labour Force Survey

 Notes on the statistical tables

Sampling Method, Estimation Method, and Sampling Errors of Estimates

1. The benchmark population was revised to the 2020 Census-based population estimates in January 2022 for Basic Tabulation, and in Jan.-Mar. 2022 for Detailed Tabulation. Since 1982, the benchmark population for calculating the results of the Labour Force Survey is revised every five years because the Population Estimates are revised every five years according to the release of the latest results of the Population Census conducted every five years.
   Further explanation on benchmark population is described in "Sampling Method, Estimation Method, and Sampling Errors of Estimates"(PDF:522KB).

Classification

1. In the Labour Force Survey results, the number of employed persons is classified by the Japan Standard Industrial Classification (JSIC). With the 12th revision of the JSIC, the Statistics Bureau started providing the Labour Force Survey results by the new industrial classification from January 2009 results, and computed 2007-2008 results retroactively.
   Please refer to "Revision of industrial classification for the Labour Force Survey results"(PDF:59KB).
2. Dispatched workers from temporary labour agency are requested to report the industry of the establishments which they actually work in (dispatched), namely they are classified into each industry. Until December 2012, they reported the dispatching industry, which was classified into "Services, N.E.C.".
3. Concerning the number of employed persons by industry / "number of persons engaged in enterprise", attention needs to be paid when comparing the change over the year because of the postal service privatization on 1 October 2007.
   < Industry >
   from "Compound services" to "Transport and postal activities", "Finance and insurance" or "Services, N.E.C."
   < Number of persons engaged in enterprise >
   from "Government employee" to "500 persons or more"

Results and Figures

1. Attention needs to be paid when comparing the change over the year because the number of weekdays in the survey week (*) is not always the same.
   * The last seven days of every month. As for December, 20th to 26th.
2. In the "Detailed Tabulation", the inmates of reformatory institutions and the personnel resided in Self- Defence Forces areas are excluded from the tabulation. And the "Detailed Tabulation" sample universe covers only the second month of the second year sample in the "Basic Tabulation". Figures in the "Detailed Tabulation" are not necessarily correspond with those in the "Basic Tabulation" because of the difference in the coverage.
3. Figures may not add up to totals because figures are rounded to ten thousand or "unclassifiable/not reported" is included in totals.
4. Figures for "change", "percentage of change", "percentage distribution" are calculated from the figures rounded to ten thousand. "*" indicates that the percentage is not computed because the denominator is too small.
5. "0" indicates that the figure is less than half of the given unit. "-" indicates that the figure does not exist.

 Notes on the database

1. "0", "0.0" or "***" indicates the following mean.

   Time	Yearly	Prior to 2000	2000 and 2001	Since 2002
   	Fiscal yearly	Prior to 1999	1999 and 2000	Since 2001
   	Monthly	Prior to Jan. 2000	From Jan. 2000 to Jan. 2002	Since Feb. 2002
   	Quarterly	Prior to Jan.-Mar. 2000	From Jan.-Mar. 2000 to Oct.-Dec. 2001	Since Jan.-Mar. 2002
   	Half yearly	Prior to Jan.-Jun. 2000	From Jan.-Jun. 2000 to Jul.-Dec. 2001	Since Jan.-Jun. 2002
   The figure is less than half of the given unit		"0" "0.0"	"0" "0.0"	"0" "0.0"
   The figure does not exist		***	"0" "0.0"	***
   The figure is unregistered on this database		***	***
   The figure is not tabulated		***	***	***

2. Okinawa-ken is not included in the figures prior to 1973 on this database.
3. Along with the revision of industrial or occupational classification, contents of the new item may be differ from the old one even if the new item name is the same as the old one. The item name of the old classification indicates as "*Manufacturing".

 Notes on the Historical data

Please refer to "Notes on the Historical data".

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