| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 481 |
76.2%
|
| 2 | no | 144 |
22.8%
|
| 3 | (dk) | 3 |
0.5%
|
| 4 | (ref) | 3 |
0.5%
|
| Sysmiss | 371 |