| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 674 | 
                                                                 
                                    
                                    82.6%
                                 
                                                             | 
                                                        
                    
| 1 | yes | 142 | 
                                                                 
                                    
                                    17.4%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 3972 |