| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. never | 1081 |
75.6%
|
| 1 | 1. once or twice | 50 |
3.5%
|
| 2 | 2. several times | 61 |
4.3%
|
| 3 | 3. most of the time | 237 |
16.6%
|
| Sysmiss | 134 |