| Value | Category | Cases | |
|---|---|---|---|
| 0 | Always | 2353 |
65.8%
|
| 1 | Often | 119 |
3.3%
|
| 2 | Sometimes | 17 |
0.5%
|
| 3 | Rarely | 5 |
0.1%
|
| 4 | Never | 1037 |
29%
|
| 8 | Refused | 12 |
0.3%
|
| 9 | Missing | 31 |
0.9%
|
| Sysmiss | 45 |