| Value | Category | Cases | |
|---|---|---|---|
| 0 | 280 | 
                                                                 
                                    
                                    65.7%
                                 
                                                             | 
                                                        
                    |
| 1 | 146 | 
                                                                 
                                    
                                    34.3%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 770 |