The recently concluded U.S. federal government shutdown impacted CPS data collection and release timelines. Once the September 2025 monthly data are available, we will process and release them as quickly as possible via IPUMS.
- Codes
- Description
- Comparability
- Universe
- Availability
- Flags
- Questionnaire Text
- UnHarmonized Variables
Codes
This is a 4 digit numeric variable.
9999 = N.I.U. (Not in Universe).
Description
FRBIRTHY4 gives the birth year of the woman's fourth child. This variable is a part of the CPS Fertility Supplement.
Universe
- Jun 1980: Women age 15-75 with at least four live births.
- Jun 1990 and Jun 1995: Women age 15-65 with at least four live births.
Availability
| Years | Jan | Feb | ASEC | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1980 | - | - | - | - | - | X | - | - | - | - | - | - |
| 1990 | - | - | - | - | - | X | - | - | - | - | - | - |
| 1995 | - | - | - | - | - | X | - | - | - | - | - | - |
