| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 166 |
93.3%
|
| 2 | no | 9 |
5.1%
|
| 3 | (dk) | 1 |
0.6%
|
| 4 | (ref) | 2 |
1.1%
|
| Sysmiss | 823 |