| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 155 |
19%
|
| 2 | no | 644 |
78.9%
|
| 3 | (dk) | 14 |
1.7%
|
| 4 | (ref) | 3 |
0.4%
|
| Sysmiss | 184 |