| Value | Category |
|---|---|
| 0 | 0 months |
| 1 | 1 month |
| 2 | 2 months |
| 3 | 3 months |
| 4 | 4 months |
| 5 | 5 months |
| 6 | 6 months |
| 7 | 7 months |
| 8 | 8 months |
| 9 | 9 months |
| 10 | 10 months |
| 11 | 11 months |
| 12 | 12 months |
| 98 | Not reported/unknown |
| 99 | NIU (not in universe) |
| Name | Vocabulary |
|---|---|
| Work Variables -- PERSON | IPUMS |