| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | not at all | 660 |
18.4%
|
| 1 | less than once a week | 343 |
9.5%
|
| 2 | at least once a week | 589 |
16.4%
|
| 3 | almost every day | 2001 |
55.7%
|
| Sysmiss | 12 |