| Value | Category | Cases | |
|---|---|---|---|
| 1 | Always | 0 |
0%
|
| 2 | Often | 0 |
0%
|
| 3 | Sometimes | 0 |
0%
|
| 4 | Rarely | 2 |
0.6%
|
| 555 | Never | 341 |
99.4%
|
| 999 | Don't know | 0 |
0%
|
| Sysmiss | 577 |