| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. never | 124 |
28.9%
|
| 1 | 1. once or twice | 41 |
9.6%
|
| 2 | 2. several times | 58 |
13.5%
|
| 3 | 3. most of the times | 206 |
48%
|
| Sysmiss | 1134 |