| Value | Category | Cases | |
|---|---|---|---|
| 0 | Always | 15 |
0.4%
|
| 1 | Often | 1 |
0%
|
| 2 | Sometimes | 19 |
0.5%
|
| 3 | Rarely | 20 |
0.6%
|
| 4 | Never | 3319 |
92.9%
|
| 8 | Refused | 0 |
0%
|
| 9 | Missing | 200 |
5.6%
|
| Sysmiss | 45 |