| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 131 |
27.4%
|
| 2 | no | 337 |
70.5%
|
| 3 | (dk) | 10 |
2.1%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 522 |