| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 2540 | 
                                                                 
                                    
                                    19.4%
                                 
                                                             | 
                                                        
                    
| 1 | yes | 10525 | 
                                                                 
                                    
                                    80.4%
                                 
                                                             | 
                                                        
                    
| 9 | 28 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             | 
                                                        
                    |
| 11 | .Z | 5661 |