| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 122 |
31.7%
|
| 2 | no | 257 |
66.8%
|
| 3 | (dk) | 4 |
1%
|
| 4 | (ref) | 2 |
0.5%
|
| Sysmiss | 615 |