| Value | Category | Cases | |
|---|---|---|---|
| 0 | 6366 | 
                                    
                                    77.2%
                                 | |
| 1 | 320 | 
                                    
                                    3.9%
                                 | |
| Missing value | 1559 | 
                                    
                                    18.9%
                                 |