| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 1001 | 
                                    
                                    34.3%
                                 | 
| 2 | 1 | 14 | 
                                    
                                    0.5%
                                 | 
| Missing value | 1904 | 
                                    
                                    65.2%
                                 |