| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 169 |
38.1%
|
| 2 | no | 228 |
51.5%
|
| 3 | (dk) | 43 |
9.7%
|
| 4 | (ref) | 3 |
0.7%
|
| Sysmiss | 557 |