| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 2826 | 
                                                                 
                                    
                                    98.3%
                                 
                                                             | 
                                                        
                    
| 1 | yes | 9 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    
| 9 | 41 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 11 | .Z | 15878 |