| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | not at all | 1900 |
81.2%
|
| 1 | less than once a week | 120 |
5.1%
|
| 2 | at least once a week | 129 |
5.5%
|
| 3 | almost every day | 191 |
8.2%
|