| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. never | 1339 |
88.2%
|
| 1 | 1. once or twice | 77 |
5.1%
|
| 2 | 2. several times | 22 |
1.4%
|
| 3 | 3. most of the times | 81 |
5.3%
|
| Sysmiss | 44 |