| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | not at all | 1668 |
71.4%
|
| 1 | less than once a week | 236 |
10.1%
|
| 2 | at least once a week | 169 |
7.2%
|
| 3 | almost every day | 264 |
11.3%
|
| Sysmiss | 3 |