| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 505 | 
                                    
                                    14.9%
                                 | 
| 2 | NO | 45 | 
                                    
                                    1.3%
                                 | 
| 8 | DK | 24 | 
                                    
                                    0.7%
                                 | 
| Sysmiss | 2817 | 
                                    
                                    83.1%
                                 |