| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. frequently | 410 |
19.3%
|
| 2 | 2. occasionally | 674 |
31.8%
|
| 3 | 3. never | 1003 |
47.3%
|
| 4 | 4. don’t know | 35 |
1.6%
|
| Sysmiss | 2071 |