| Value | Category | Cases | |
|---|---|---|---|
| 1 | Always | 180 |
5.7%
|
| 2 | Often | 374 |
11.9%
|
| 3 | Sometimes | 1161 |
36.8%
|
| 4 | Not at all | 1349 |
42.8%
|
| 8 | Do not know | 88 |
2.8%
|
| Sysmiss | 31 |