| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 7 |
12.5%
|
| 2 | no | 48 |
85.7%
|
| 3 | (dk) | 0 |
0%
|
| 4 | (ref) | 1 |
1.8%
|
| Sysmiss | 953 |