| Value | Category | Cases | |
|---|---|---|---|
| 0 | Always | 152 |
12.3%
|
| 1 | Often | 45 |
3.7%
|
| 2 | Sometimes | 101 |
8.2%
|
| 3 | Rarely | 41 |
3.3%
|
| 4 | Never | 880 |
71.5%
|
| 8 | Refused | 2 |
0.2%
|
| 9 | Missing | 10 |
0.8%
|
| Sysmiss | 25 |