| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 498 | 
                                    
                                    14.7%
                                 | 
| 2 | NO | 36 | 
                                    
                                    1.1%
                                 | 
| 8 | DK | 40 | 
                                    
                                    1.2%
                                 | 
| Sysmiss | 2817 | 
                                    
                                    83.1%
                                 |