| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | Every week | 541 |
22.4%
|
| 2 | At least once a month | 1020 |
42.2%
|
| 3 | Less often | 855 |
35.4%
|
| 4 | Once every 3 months | 1 |
0%
|
| Sysmiss | 13195 |