| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 31170 |
91.8%
|
| 1 | Often | 897 |
2.6%
|
| 2 | Sometimes | 1412 |
4.2%
|
| 3 | Yes, but not in the last 12 months | 477 |
1.4%
|
| Sysmiss | 15081 |