| Value | Category |
|---|---|
| 1 | Month and year reported |
| 2 | Month and age reported, year imputed |
| 3 | Year and age reported, month imputed |
| 4 | Year reported, age and month imputed |
| 5 | Age reported, year and month imputed |
| 6 | Month reported, age and year imputed |
| 7 | Year and age reported, year ignored |
| 8 | All values imputed |
| 9 | NIU (not in universe) |
| var_concept.title | Vocabulary |
|---|---|
| Marriage and cohabitation Variables -- TOPICS | IPUMS |