| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. never | 653 |
45.7%
|
| 1 | 1. once or twice | 17 |
1.2%
|
| 2 | 2. several times | 63 |
4.4%
|
| 3 | 3. most of the time | 696 |
48.7%
|
| Sysmiss | 134 |