| Value | Category | Cases | |
|---|---|---|---|
| 1 | Often | 6 |
0.6%
|
| 2 | Sometimes | 50 |
4.8%
|
| 3 | Rarely | 135 |
12.9%
|
| 4 | Never | 844 |
80.7%
|
| Sysmiss | 11 |
1.1%
|