| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | Never | 2514 |
99.4%
|
| 1 | Often | 3 |
0.1%
|
| 2 | Sometimes | 8 |
0.3%
|
| 3 | Yes, but not in the last 12 months | 2 |
0.1%
|
| 4 | Yes, but frequency in last 12 months missing | 2 |
0.1%
|
| Sysmiss | 2800 |