| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 442 |
61.5%
|
| 2 | no | 256 |
35.6%
|
| 3 | (dk) | 20 |
2.8%
|
| 4 | (ref) | 1 |
0.1%
|
| Sysmiss | 288 |