| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 439 | 
                                                                 
                                    
                                    69.4%
                                 
                                                             | 
                                                        
                    
| 2 | No | 73 | 
                                                                 
                                    
                                    11.5%
                                 
                                                             | 
                                                        
                    
| 3 | DK | 121 | 
                                                                 
                                    
                                    19.1%
                                 
                                                             | 
                                                        
                    
| 9 | 197 | ||
| Sysmiss | 7965 |