| Value | Category | Cases | |
|---|---|---|---|
| 0 | never | 1786 |
89.2%
|
| 1 | only once | 66 |
3.3%
|
| 2 | sometimes | 110 |
5.5%
|
| 3 | often | 41 |
2%
|
| Sysmiss | 1 |