| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 280 |
32.7%
|
| 2 | no | 409 |
47.7%
|
| 3 | (dk) | 167 |
19.5%
|
| 4 | (ref) | 1 |
0.1%
|
| Sysmiss | 145 |