| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 2137 |
90.9%
|
| 1 | Often | 29 |
1.2%
|
| 2 | Sometimes | 141 |
6%
|
| 3 | Yes, but not in the last 12 months | 42 |
1.8%
|
| 4 | Yes, but frequency in last 12 months missing | 3 |
0.1%
|
| 9 | 2 | ||
| Sysmiss | 2911 |