| value | category | cases | |
|---|---|---|---|
| 1 | month and year - information complete | 5117 |
91.1%
|
| 5 | year - month imputed, age calculated | 409 |
7.3%
|
| 7 | month - date placed | 20 |
0.4%
|
| 8 | none - date placed | 71 |
1.3%
|
| 9 | from calendar | 0 |
0%
|
| 11 | .Z | 32367 |