| Value | Category | Cases | |
|---|---|---|---|
| 0 | 287 | 
                                                                 
                                    
                                    5.5%
                                 
                                                             | 
                                                        
                    |
| 1 | 73 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 99 | 1 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    |
| Missing value | 4870 | 
                                                                 
                                    
                                    93.1%
                                 
                                                             |