| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 67 |
14%
|
| 2 | no | 319 |
66.5%
|
| 3 | (dk) | 93 |
19.4%
|
| 4 | (ref) | 1 |
0.2%
|
| Sysmiss | 520 |