| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 767 |
93%
|
| 2 | no | 47 |
5.7%
|
| 3 | (dk) | 6 |
0.7%
|
| 4 | (ref) | 5 |
0.6%
|
| Sysmiss | 176 |