| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 4591 |
34.2%
|
| 2 | no | 8777 |
65.4%
|
| 3 | (dk) | 50 |
0.4%
|
| 4 | (ref) | 12 |
0.1%
|
| Sysmiss | 130457 |