| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | Then | 26 |
54.2%
|
| 2 | Later | 11 |
22.9%
|
| 3 | Not at all | 11 |
22.9%
|
| 9 | 4 | ||
| Sysmiss | 743 |