| Value | Category | Cases | |
|---|---|---|---|
| 1 | Always | 1080 |
18.8%
|
| 2 | Often | 8 |
0.1%
|
| 3 | Sometimes | 73 |
1.3%
|
| 4 | Rarely | 9 |
0.2%
|
| 555 | Never | 102 |
1.8%
|
| Sysmiss | 4474 |
77.9%
|