| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 10 |
14.5%
|
| 2 | no | 56 |
81.2%
|
| 3 | (dk) | 3 |
4.3%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 931 |