| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes, always | 2240 |
34.5%
|
| 2 | yes, sometimes | 485 |
7.5%
|
| 3 | no | 292 |
4.5%
|
| 4 | not applicable | 624 | |
| Sysmiss | 2859 |