| Value | Category | Cases | |
|---|---|---|---|
| 0 | never | 1761 |
87.9%
|
| 1 | only once | 65 |
3.2%
|
| 2 | sometimes | 128 |
6.4%
|
| 3 | often | 49 |
2.4%
|
| Sysmiss | 1 |