| Value | Category | Cases | |
|---|---|---|---|
| 0 | Always | 8 |
0.6%
|
| 1 | Often | 2 |
0.2%
|
| 2 | Sometimes | 10 |
0.8%
|
| 3 | Rarely | 9 |
0.7%
|
| 4 | Never | 1192 |
96.8%
|
| 8 | Refused | 0 |
0%
|
| 9 | Missing | 10 |
0.8%
|
| Sysmiss | 25 |