| Value | Category | Cases | |
|---|---|---|---|
| 0 | never | 1168 |
58.3%
|
| 1 | only once | 137 |
6.8%
|
| 2 | sometimes | 399 |
19.9%
|
| 3 | often | 299 |
14.9%
|
| Sysmiss | 1 |