| Value | Category | Cases | |
|---|---|---|---|
| 0 | 978 | 
                                                                 
                                    
                                    30.9%
                                 
                                                             | 
                                                        
                    |
| 1 | 2190 | 
                                                                 
                                    
                                    69.1%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 1847 |