| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 48 |
17.3%
|
| 2 | no | 228 |
82%
|
| 3 | (dk) | 1 |
0.4%
|
| 4 | (ref) | 1 |
0.4%
|
| Sysmiss | 722 |