| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 558 | 
                                                                 
                                    
                                    71.7%
                                 
                                                             | 
                                                        
                    
| 2 | No | 98 | 
                                                                 
                                    
                                    12.6%
                                 
                                                             | 
                                                        
                    
| 3 | DK | 122 | 
                                                                 
                                    
                                    15.7%
                                 
                                                             | 
                                                        
                    
| 9 | 52 | ||
| Sysmiss | 7965 |