| Value | Category | Cases | |
|---|---|---|---|
| 0 | 861 | 
                                                                 
                                    
                                    78.9%
                                 
                                                             | 
                                                        
                    |
| 1 | 230 | 
                                                                 
                                    
                                    21.1%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 3924 |