| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 593 |
81.3%
|
| 2 | no | 131 |
18%
|
| 3 | (dk) | 3 |
0.4%
|
| 4 | (ref) | 2 |
0.3%
|
| Sysmiss | 276 |