| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3912 | 
                                    
                                    47.4%
                                 | |
| 1 | 9 | 
                                    
                                    0.1%
                                 | |
| Missing value | 4324 | 
                                    
                                    52.4%
                                 |