Index weeks containing the 12th are compared monthly to match the reference periods used by the U.S. Bureau of Labor Statistics in its monthly employment situation reports, which contain data on the temporary help industry. Because the same reference period is used in both the ASA Staffing Index and BLS monthly reports, the two data series can be easily compared. ASA data are not adjusted for seasonal factors and should be compared to nonseasonally adjusted BLS data.
| Reference Month | ASA Staffing Index Monthly Report Release Date |
BLS Monthly Employment Situation Report Release Date |
|---|---|---|
| December 2021 | Dec. 21, 2021 | Jan. 7, 2022 |
| January | Jan. 25, 2022 | Feb. 4, 2022 |
| February | Feb. 23, 2022 | March 4, 2022 |
| March | March 22, 2022 | April 1, 2022 |
| April | April 26, 2022 | May 6, 2022 |
| May | May 24, 2022 | June 3, 2022 |
| June | June 22, 2022 | July 8, 2022 |
| July | July 26, 2022 | Aug. 5, 2022 |
| August | Aug. 23, 2022 | Sept. 2, 2022 |
| September | Sept. 27, 2022 | Oct. 7, 2022 |
| October | Oct. 25, 2022 | Nov. 4, 2022 |
| November | Nov. 22, 2022 | Dec. 2, 2022 |
