| Value | Category | Cases | |
|---|---|---|---|
| 1 | Often | 4 |
0.4%
|
| 2 | Sometimes | 26 |
2.5%
|
| 3 | Rarely | 39 |
3.7%
|
| 4 | Never | 967 |
92.4%
|
| Sysmiss | 10 |
1%
|