| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. never | 1782 |
56.9%
|
| 2 | 2. once | 550 |
17.6%
|
| 3 | 3. two or three times | 544 |
17.4%
|
| 4 | 4. more often | 257 |
8.2%
|
| Sysmiss | 1405 |