| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 698 | 
                                                                 
                                    
                                    15.9%
                                 
                                                             | 
                                                        
                    
| 2 | no | 3685 | 
                                                                 
                                    
                                    83.9%
                                 
                                                             | 
                                                        
                    
| 8 | DK | 6 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    
| 9 | NA | 3 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             |