| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 14900 |
97.5%
|
| 1 | Often | 138 |
0.9%
|
| 2 | Sometimes | 200 |
1.3%
|
| 3 | Yes, but not in the last 12 months | 43 |
0.3%
|
| Sysmiss | 5937 |