| Value | Category | Cases | |
|---|---|---|---|
| 1 | Often | 4 |
0.7%
|
| 2 | Sometimes | 18 |
2.9%
|
| 3 | Rarely | 36 |
5.9%
|
| 4 | Never | 553 |
90.5%
|
| 5 | Refuse to answer | 0 |
0%
|
| Sysmiss | 131 |