| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | Then | 24 |
54.5%
|
| 2 | Later | 10 |
22.7%
|
| 3 | Not at all | 10 |
22.7%
|
| 9 | 4 | ||
| Sysmiss | 283 |