| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. never | 1341 |
88.3%
|
| 1 | 1. once or twice | 81 |
5.3%
|
| 2 | 2. several times | 30 |
2%
|
| 3 | 3. most of the times | 67 |
4.4%
|
| Sysmiss | 44 |