| Value | Category | Cases | |
|---|---|---|---|
| 0 | Always | 906 |
73.6%
|
| 1 | Often | 46 |
3.7%
|
| 2 | Sometimes | 3 |
0.2%
|
| 3 | Rarely | 5 |
0.4%
|
| 4 | Never | 196 |
15.9%
|
| 8 | Refused | 7 |
0.6%
|
| 9 | Missing | 68 |
5.5%
|
| Sysmiss | 25 |