| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 3224 |
98.8%
|
| 1 | Often | 7 |
0.2%
|
| 2 | Sometimes | 23 |
0.7%
|
| 3 | Yes, but not in the last 12 months | 8 |
0.2%
|
| 4 | Yes, but frequency in last 12 months missing | 2 |
0.1%
|
| 9 | 4 | ||
| Sysmiss | 9551 |