| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 4185 | 
                                    
                                    90.5%
                                 | 
| 3 | No | 0 | 
                                    
                                    0%
                                 | 
| 8 | DK | 437 | 
                                    
                                    9.5%
                                 | 
| Sysmiss | 4450 |