| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. frequently | 202 |
9.5%
|
| 2 | 2. occasionally | 397 |
18.7%
|
| 3 | 3. never | 1463 |
68.9%
|
| 4 | 4. don’t know | 60 |
2.8%
|
| Sysmiss | 2071 |