| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. frequently | 277 |
13.1%
|
| 2 | 2. occasionally | 500 |
23.6%
|
| 3 | 3. never | 1281 |
60.4%
|
| 4 | 4. don’t know | 64 |
3%
|
| Sysmiss | 2071 |