| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. Never | 2207 |
72.8%
|
| 2 | 2. Sometimes | 744 |
24.5%
|
| 4 | 4. Often | 54 |
1.8%
|
| 6 | 6. Very often | 27 |
0.9%
|
| Sysmiss | 1923 |