| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. never | 440 |
30.3%
|
| 1 | 1. once or twice | 19 |
1.3%
|
| 2 | 2. several times | 107 |
7.4%
|
| 3 | 3. most of the times | 888 |
61.1%
|
| Sysmiss | 109 |