| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 685 | 
                                                                 
                                    
                                    79.1%
                                 
                                                             | 
                                                        
                    
| 1 | yes | 159 | 
                                                                 
                                    
                                    18.4%
                                 
                                                             | 
                                                        
                    
| 9 | 22 | 
                                                                 
                                    
                                    2.5%
                                 
                                                             | 
                                                        
                    |
| 11 | .Z | 17888 |