| Value | Category | Cases | |
|---|---|---|---|
| 1 | Often | 3 |
0.5%
|
| 2 | Sometimes | 14 |
2.3%
|
| 3 | Rarely | 34 |
5.6%
|
| 4 | Never | 560 |
91.7%
|
| 5 | Refuse to answer | 0 |
0%
|
| Sysmiss | 131 |