| Value | Category | Cases | |
|---|---|---|---|
| 0 | Always | 11 |
0.9%
|
| 1 | Often | 2 |
0.2%
|
| 2 | Sometimes | 92 |
7.5%
|
| 3 | Rarely | 34 |
2.8%
|
| 4 | Never | 1089 |
88.5%
|
| 8 | Refused | 0 |
0%
|
| 9 | Missing | 3 |
0.2%
|
| Sysmiss | 25 |