| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 48 |
24.4%
|
| 1 | Once | 7 |
3.6%
|
| 2 | A few times | 114 |
57.9%
|
| 3 | Often | 23 |
11.7%
|
| 999 | I don't wish to answer | 5 |
2.5%
|
| Sysmiss | 52 |