| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | not at all | 2975 |
82.8%
|
| 1 | less than once a week | 244 |
6.8%
|
| 2 | at least once a week | 219 |
6.1%
|
| 3 | almost every day | 153 |
4.3%
|
| Sysmiss | 14 |