| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 31697 |
93.3%
|
| 1 | Often | 632 |
1.9%
|
| 2 | Sometimes | 1251 |
3.7%
|
| 3 | Yes, but not in the last 12 months | 376 |
1.1%
|
| Sysmiss | 15081 |