| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 3 |
21.4%
|
| 2 | no | 9 |
64.3%
|
| 3 | (dk) | 2 |
14.3%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 996 |