| Value | Category | Cases | |
|---|---|---|---|
| 0 | never | 1868 |
93.3%
|
| 1 | only once | 52 |
2.6%
|
| 2 | sometimes | 55 |
2.7%
|
| 3 | often | 28 |
1.4%
|
| Sysmiss | 1 |