| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 1960 | 
                                    
                                    47.9%
                                 | 
| 2 | No | 1605 | 
                                    
                                    39.2%
                                 | 
| 3 | dk | 530 | 
                                    
                                    12.9%
                                 | 
| Sysmiss | 23895 |