| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 242 | 
                                    
                                    2.4%
                                 | 
| 2 | NO | 6120 | 
                                    
                                    60.7%
                                 | 
| 8 | DK | 42 | 
                                    
                                    0.4%
                                 | 
| Sysmiss | 3676 | 
                                    
                                    36.5%
                                 |