| Value | Category | Cases | |
|---|---|---|---|
| 1 | Always | 1 |
0.3%
|
| 2 | Often | 0 |
0%
|
| 3 | Sometimes | 0 |
0%
|
| 4 | Rarely | 4 |
1.2%
|
| 555 | Never | 338 |
98.5%
|
| 999 | Don't know | 0 |
0%
|
| Sysmiss | 577 |