| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. never | 1307 |
86%
|
| 1 | 1. once or twice | 139 |
9.2%
|
| 2 | 2. several times | 46 |
3%
|
| 3 | 3. most of the times | 27 |
1.8%
|
| Sysmiss | 44 |