| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 28 | 
                            
                             
                                
                                0.7%
                                                             
                            
                         | 
                        
                    
| 2 | no | 2135 | 
                            
                             
                                
                                51.4%
                                                             
                            
                         | 
                        
                    
| 9 | not applicable | 0 | 
                            
                             
                                
                                0%
                                                             
                            
                         | 
                        
                    
| 9999995 | missing:impute | 1989 | 
                            
                             
                                
                                47.9%
                                                             
                            
                         | 
                        
                    
| Sysmiss | 81 |