| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 20 |
13.9%
|
| 2 | no | 121 |
84%
|
| 3 | (dk) | 2 |
1.4%
|
| 4 | (ref) | 1 |
0.7%
|
| Sysmiss | 856 |