| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | Month and year - information complete | 8834 |
99.6%
|
| 5 | Year - month imputed, age calculated | 16 |
0.2%
|
| 7 | Month - date placed | 4 |
0%
|
| 8 | None - date placed | 19 |
0.2%
|
| 9 | From calendar | 0 |
0%
|
| Sysmiss | 47305 |