| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes, always | 2568 |
39.5%
|
| 2 | yes, sometimes | 576 |
8.9%
|
| 3 | no | 275 |
4.2%
|
| 4 | not applicable | 222 | |
| Sysmiss | 2859 |