| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. never | 2878 |
80.1%
|
| 2 | 2. once | 608 |
16.9%
|
| 3 | 3. twice | 99 |
2.8%
|
| 4 | 4. three times or more | 3 |
0.1%
|
| 5 | 5. prefer not to say | 3 |
0.1%
|
| Sysmiss | 602 |