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Previously released information

[2025]

• Revision of seasonal adjustment in 2025
  RegARIMA models have been updated and seasonally adjusted data rivised retroactively on the release of January 2025 results.
  (on March 3, 2025)

[2024]

• Revision of seasonal adjustment in 2024
  RegARIMA models have been updated and seasonally adjusted data rivised retroactively on the release of January 2024 results.
  (on March 1, 2024)

[2023]

• Revision of seasonal adjustment in 2023
  RegARIMA models have been updated and seasonally adjusted data rivised retroactively on the release of January 2023 results.
  (on March 3, 2023)

[2022]

• Revision of seasonal adjustment in 2022
  RegARIMA models have been updated when revising seasonally adjusted data retroactively on the release of January 2022 results.
  (on March 3, 2022)
• "2022 revision of benchmark population"
  Using the latest results of the Population Census as the base, the benchmark population for calculating the results of the Labour Force Survey is revised every five years.
  The revision to 2020 Census-based population estimates was held in January 2022 for Basic Tabulation, and in Jan.-Mar. 2022 for Detailed Tabulation.
  (on March 4 and revised on May 13, 2022)

[2021]

• Revision of seasonal adjustment in 2021
  RegARIMA models have been updated when revising seasonally adjusted data retroactively on the release of January 2021 results.
  (on March 2, 2021)

[2020]

• Revision of seasonal adjustment in 2020
  RegARIMA models have been updated when revising seasonally adjusted data retroactively on the release of January 2020 results.
  (on January 31, 2020)

[2019]

• Revision of seasonal adjustment in 2019
  RegARIMA models have been updated when revising seasonally adjusted data retroactively on the release of January 2019 results.
  (on February 1, 2019)

[2018]

• Revision of seasonal adjustment in 2018
  RegARIMA models have been updated when revising seasonally adjusted data retroactively on the release of January 2018 results.
  (on January 30, 2018)
• "Revision of the Labour Force Survey from January 2018"(PDF:114KB)
  To grasp the varied state of the employment and unemployment more precisely, the Statistics Bureau of Japan revised the Labour Force Survey by introducing new questionnaires and enhancing current statistical tables from January 2018.
  (on March 2, 2018)

[2017]

• "2017 revision of benchmark population"
  Using the latest results of the Population Census as the base, the benchmark population for calculating the results of the Labour Force Survey is revised every five years.
  The revision to 2015 Census-based population estimates was held in January 2017 for Basic Tabulation, and in Jan.-Mar. 2017 for Detailed Tabulation.
  (on March 3 and revised on May 9, 2017)
• Revision of seasonal adjustment in 2017
  RegARIMA models have been updated when revising seasonally adjusted data retroactively on the release of January 2017 results.
  (on March 3, 2017)

[2016]

• Revision of seasonal adjustment in 2016
  RegARIMA models have been updated when revising seasonally adjusted data retroactively on the release of January 2016 results.
  (on March 1, 2016)

[2015]

• [Errata] Annual Report on the Labour Force Survey, JAPAN, 2013. Table I-A-11 Employee in non-agricultural industries by number of persons engaged in enterprise and weekly hours of work (excluding government employee)
  (on March 27, 2015)
• Revision of seasonal adjustment in 2015
  RegARIMA models have been updated when revising seasonally adjusted data retroactively on the release of January 2015 results.
  (on February 27, 2015)

[2014]

• The results of April 2014 and May 2014 have been corrected because the Population Estimates were corrected.
  (on July 22, 2014)
• Revision of seasonal adjustment in 2014
  RegARIMA models have been updated when revising seasonally adjusted data retroactively on the release of January 2014 results. Fifteen of seasonally adjusted series by industry will be discontinued on the release of April 2014 results, because no substantial seasonality was observed over the past decade except two retained series: "Agriculture and forestry" and "Non-agricultural industries".
  (on February 28, 2014)
• Change in "Historical data 1"
  "Historical data 1" has been renewed on the release of January 2014 by putting major series together into one Excel book and adding three new original (non-seasonally adjusted) series: "Population aged 15 years old and over", "Not in labour force", and "Employment rate" by age group. Please be aware that the filenames of all the Excel books in "Historical data 1" have been altered.
  (on February 28, 2014)

[2013]

• Partly introducing X-12-regARIMA for seasonal adjustment
  X-12-regARIMA was introduced to 18 series since result of January 2013. As in the past, X-11(default) has continued to be applied to series which are not mentioned.
  (on March 1, 2013)
• "Revision of the Labour Force Survey from January 2013" (PDF:192KB)
  The Statistics Bureau of Japan revises the Labour Force Survey by introducing new questionnaires and enhancing current tables from January 2013 in order to accurately grasp the employment/unemployment situation.
  For detailed background, refer to "News Bulletin" (on July 23, 2012).
  (on February 1, 2013)

[2012]

• The original series from 2005 through 2011 have been adjusted to the compatible time-series data responding to the 2010-base benchmark revision.
  (on Sep. 28, 2012)

• "Supplementary-estimated figures in 2011"

  Figures covering from March through August 2011 have been complemented by estimation.
  (on Apr. 24, 2012)
  Population of 15 years old or more by age group for whole Japan, covering from March through August 2011, have been posted.
  (on June 29, 2012)

• The original series from October 2005 through December 2011 have been adjusted to the compatible time-series data responding to the 2010-base benchmark revision.
  (on June 29, 2012)

• "2012 revision of benchmark population"

  Using the latest results of the Population Census as the base, the benchmark population for calculating the results of the Labour Force Survey are revised every five years.
  It has been revised to the 2010 Census-based population estimates in January 2012 for Basic Tabulation, and in Jan.-Mar. 2012 for Detailed Tabulation.
  (Retroactive adjustment data, ---calculated by applying 2010 census base benchmark population instead of previously released 2005-base---, are used for calculating "Change from the year" during 2012(excluding rate). )
  (on Mar. 2, 2012)

[2011]

• We released the results for whole Japan not including three prefectures (Iwate, Miyagi and Fukushima) due to the damage caused by the Great East Japan Earthquake from the results for March to August 2011, however, the results for whole Japan including three prefectures (Iwate, Miyagi and Fukushima) are available from the results for September 2011.
  (on Oct. 28, 2011)

• Results from December 2010 through February 2011(monthly), Oct.-Dec.2010(quarterly average), 2010(yearly average) were recalculated, because some inappropriate questionnaires, which should be eliminated, had been included.
  "Errata on Labour Force Survey" have been updated.
  (on June 22, 2011)

[2008]

• Revision of industrial classification for the Labour Force Survey results from January 2009 results(PDF:59KB)
  (Updated on Oct. 31, 2008)

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