| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 18 |
6%
|
| 2 | no | 282 |
93.7%
|
| 3 | (dk) | 1 |
0.3%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 699 |