| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 780 | 
                                                                 
                                    
                                    98.2%
                                 
                                                             | 
                                                        
                    
| 2 | No | 6 | 
                                                                 
                                    
                                    0.8%
                                 
                                                             | 
                                                        
                    
| 3 | DK | 8 | 
                                                                 
                                    
                                    1%
                                 
                                                             | 
                                                        
                    
| 9 | 36 | ||
| Sysmiss | 7965 |