| Value | Category |
|---|---|
| 01 | Month and year reported |
| 02 | Month and age reported, year imputed |
| 03 | Year and age reported, month imputed |
| 05 | Year reported, age and month imputed |
| 06 | Age reported, year and month imputed |
| 08 | Month reported, age and year imputed |
| 09 | Year and age reported, year ignored |
| 10 | Season and year reported |
| 11 | All values imputed |
| 99 | NIU (not in universe) |
| 12 | All reported, inconsistent |
| var_concept.title | Vocabulary |
|---|---|
| Marriage and cohabitation Variables -- TOPICS | IPUMS |