| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 4 |
2.5%
|
| 2 | no | 159 |
97.5%
|
| 3 | (dk) | 0 |
0%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 837 |