| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | month and year | 93 |
75%
|
| 5 | year - m imp, a calc | 25 |
20.2%
|
| 7 | month - date placed | 0 |
0%
|
| 8 | none - date placed | 6 |
4.8%
|
| Sysmiss | 20531 |