| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 7724 |
95.5%
|
| 1 | Often | 133 |
1.6%
|
| 2 | Sometimes | 179 |
2.2%
|
| 3 | Yes, but not in the last 12 months | 49 |
0.6%
|
| Sysmiss | 8401 |