| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 633 |
40.4%
|
| 2 | Occasionally | 402 |
25.6%
|
| 3 | Often | 258 |
16.5%
|
| 4 | Quite often | 275 |
17.5%
|
| Sysmiss | 39 |