How are data revisions indicated?
Beginning with data for 2000, the latest two months of Mass Layoff data are preliminary and are indicated as such with a “(P).” Data for months prior to the preliminary months are considered final and are not expected to change. However, in the event that changes to final monthly data occur, an “(R)” will indicate which data are revised. This designation remains until the next month of data is made available. For example, if February 2000 was the latest data available, both January and February 2000 data would be indicated as “(P).” All months prior to January would be considered to be final. When March 2000 became available, February and March data would be considered preliminary and January 2000 data final. Any revisions to data prior to January would be indicated with an “(R).” Extended Mass Layoff data (published quarterly) follows the same approach. The latest two quarters of data are preliminary and are indicated as such with a “(P).” Data for quarters prior to the preliminary qu
