| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | Every week | 550 |
45.9%
|
| 2 | At least once a month | 402 |
33.6%
|
| 3 | Less often | 220 |
18.4%
|
| 4 | Once for 3 months | 26 |
2.2%
|
| Sysmiss | 5937 |