| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. never | 1447 |
95.3%
|
| 1 | 1. once or twice | 43 |
2.8%
|
| 2 | 2. several times | 18 |
1.2%
|
| 3 | 3. most of the times | 11 |
0.7%
|
| Sysmiss | 44 |