| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 6 |
46.2%
|
| 2 | no | 5 |
38.5%
|
| 3 | (dk) | 2 |
15.4%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 999 |