| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | month and year | 17 |
68%
|
| 5 | year - m imp, a calc | 6 |
24%
|
| 7 | month - date placed | 0 |
0%
|
| 8 | none - date placed | 2 |
8%
|
| Sysmiss | 6329 |