| Value | Category | Cases | |
|---|---|---|---|
| 1 | Always | 15 |
32.6%
|
| 2 | Sometimes | 7 |
15.2%
|
| 3 | Never | 11 |
23.9%
|
| 9 | Missing | 13 |
28.3%
|
| Sysmiss | 3573 |