| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | Then | 75 |
67.6%
|
| 2 | Later | 30 |
27%
|
| 3 | Not at all | 6 |
5.4%
|
| 9 | 1 | ||
| Sysmiss | 762 |