| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | never | 3138 |
97.4%
|
| 1 | often | 13 |
0.4%
|
| 2 | sometimes | 39 |
1.2%
|
| 3 | yes, but not in the last 12 months | 32 |
1%
|
| 4 | yes, but frequency in last 12 months missing | 0 |
0%
|
| Sysmiss | 1475 |