| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 199 | 
                                                                 
                                    
                                    93.9%
                                 
                                                             | 
                                                        
                    
| 1 | yes | 12 | 
                                                                 
                                    
                                    5.7%
                                 
                                                             | 
                                                        
                    
| 8 | dk | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 9 | 1 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             |