| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | Almost never | 2 |
0.3%
|
| 1 | Sometimes | 142 |
18.2%
|
| 2 | Almost always | 597 |
76.4%
|
| 8 | DK | 40 |
5.1%
|
| 9 | 6 | ||
| Sysmiss | 8 |