| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | Then | 662 |
73.6%
|
| 2 | Later | 196 |
21.8%
|
| 3 | No more | 41 |
4.6%
|
| 9 | 22 | ||
| Sysmiss | 4408 |