| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. never | 732 |
50.3%
|
| 1 | 1. once or twice | 533 |
36.7%
|
| 2 | 2. several times | 137 |
9.4%
|
| 3 | 3. most of the times | 52 |
3.6%
|
| Sysmiss | 109 |