| Value | Category | Cases | |
|---|---|---|---|
| 0 | 300 | 
                                                                 
                                    
                                    1.5%
                                 
                                                             | 
                                                        
                    |
| 1 | 56 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| Missing value | 19160 | 
                                                                 
                                    
                                    98.2%
                                 
                                                             |