| Value | Category | Cases | |
|---|---|---|---|
| 0 | 153 | 
                                                                 
                                    
                                    3.1%
                                 
                                                             | 
                                                        
                    |
| 1 | 22 | 
                                                                 
                                    
                                    0.4%
                                 
                                                             | 
                                                        
                    |
| Missing value | 4749 | 
                                                                 
                                    
                                    96.4%
                                 
                                                             |