| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 543 | 
                                    
                                    42.2%
                                 | 
| 2 | no | 733 | 
                                    
                                    57%
                                 | 
| 8 | dk | 10 | 
                                    
                                    0.8%
                                 | 
| Sysmiss | 14065 |