| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 42 |
3%
|
| 1 | Sometimes | 391 |
27.9%
|
| 2 | Often | 836 |
59.7%
|
| Sysmiss | 130 |
9.3%
|
|
| d | DK | 1 |
0.1%
|