| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 844 | 
                                                                 
                                    
                                    27.6%
                                 
                                                             | 
                                                        
                    
| 1 | yes | 2188 | 
                                                                 
                                    
                                    71.6%
                                 
                                                             | 
                                                        
                    
| 9 | 22 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 11 | .Z | 15700 |