| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 936 |
93.7%
|
| 2 | no | 49 |
4.9%
|
| 3 | (dk) | 5 |
0.5%
|
| 4 | (ref) | 9 |
0.9%
|
| Sysmiss | 13 |