| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 537 |
97.3%
|
| 2 | no | 14 |
2.5%
|
| 3 | (dk) | 1 |
0.2%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 448 |