| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 4476 | 
                                                                 
                                    
                                    94.4%
                                 
                                                             | 
                                                        
                    
| 1 | yes | 268 | 
                                                                 
                                    
                                    5.6%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 44 |