| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. frequently | 132 |
6.2%
|
| 2 | 2. occasionally | 326 |
15.4%
|
| 3 | 3. never | 1591 |
75%
|
| 4 | 4. don’t know | 73 |
3.4%
|
| Sysmiss | 2071 |