| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 3510 | 
                                    
                                    73.7%
                                 | 
| 3 | No | 1236 | 
                                    
                                    25.9%
                                 | 
| 8 | DK | 18 | 
                                    
                                    0.4%
                                 | 
| Sysmiss | 245 |