| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 77 | 
                                                                 
                                    
                                    13.9%
                                 
                                                             | 
                                                        
                    
| 2 | no | 477 | 
                                                                 
                                    
                                    86.1%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 3946 |