| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. never | 1307 |
86%
|
| 1 | 1. once or twice | 75 |
4.9%
|
| 2 | 2. several times | 26 |
1.7%
|
| 3 | 3. most of the times | 111 |
7.3%
|
| Sysmiss | 44 |