| Value | Category | Cases | |
|---|---|---|---|
| 1 | month and year - information complete | 46963 |
94.8%
|
| 5 | year - month imputed, age calculated | 2434 |
4.9%
|
| 7 | month - date placed | 49 |
0.1%
|
| 8 | none - date placed | 78 |
0.2%
|
| 9 | from calendar | 0 |
0%
|
| Sysmiss | 13069 |