| Value | Category | Cases | |
|---|---|---|---|
| 1 | Always | 18 |
46.2%
|
| 2 | Sometimes | 7 |
17.9%
|
| 3 | Never | 10 |
25.6%
|
| 9 | Missing | 4 |
10.3%
|
| Sysmiss | 1217 |