| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 18536 | 
                                                                 
                                    
                                    98.8%
                                 
                                                             | 
                                                        
                    
| 1 | yes | 216 | 
                                                                 
                                    
                                    1.2%
                                 
                                                             | 
                                                        
                    
| 9 | 2 | 
                                                                 
                                    
                                    0%
                                 
                                                             |