| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 3 |
4.5%
|
| 2 | no | 62 |
92.5%
|
| 3 | (dk) | 2 |
3%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 933 |