| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 3914 | 
                                    
                                    25%
                                 | 
| 2 | NO | 48 | 
                                    
                                    0.3%
                                 | 
| 8 | DK | 8 | 
                                    
                                    0.1%
                                 | 
| Sysmiss | 11665 | 
                                    
                                    74.6%
                                 |