| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 420 | 
                                                                 
                                    
                                    97.9%
                                 
                                                             | 
                                                        
                    
| 1 | other | 9 | 
                                                                 
                                    
                                    2.1%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 6326 |