| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 19 |
51.4%
|
| 2 | no | 16 |
43.2%
|
| 3 | (dk) | 1 |
2.7%
|
| 4 | (ref) | 1 |
2.7%
|
| Sysmiss | 964 |