| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 4 | 
                            
                             
                                
                                0.1%
                                                             
                            
                         | 
                        
                    
| 2 | no | 3443 | 
                            
                             
                                
                                81.9%
                                                             
                            
                         | 
                        
                    
| 9 | not applicable | 626 | 
                            
                             
                                
                                14.9%
                                                             
                            
                         | 
                        
                    
| 9999995 | missing:impute | 132 | 
                            
                             
                                
                                3.1%
                                                             
                            
                         | 
                        
                    
| Sysmiss | 28 |