| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 7773 |
96.1%
|
| 1 | Often | 89 |
1.1%
|
| 2 | Sometimes | 173 |
2.1%
|
| 3 | Yes, but not in the last 12 months | 50 |
0.6%
|
| Sysmiss | 8401 |