| Value | Category | Cases | |
|---|---|---|---|
| 0 | 509 | 
                                                                 
                                    
                                    24.7%
                                 
                                                             | 
                                                        
                    |
| 1 | 78 | 
                                                                 
                                    
                                    3.8%
                                 
                                                             | 
                                                        
                    |
| 98 | 16 | 
                                                                 
                                    
                                    0.8%
                                 
                                                             | 
                                                        
                    |
| Missing value | 1459 | 
                                                                 
                                    
                                    70.8%
                                 
                                                             |