| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 21 | 
                            
                             
                                
                                0.4%
                                                             
                            
                         | 
                        
                    
| 2 | no | 441 | 
                            
                             
                                
                                8.1%
                                                             
                            
                         | 
                        
                    
| 9 | not applicable | 4869 | 
                            
                             
                                
                                89.7%
                                                             
                            
                         | 
                        
                    
| 9999995 | missing:impute | 97 | 
                            
                             
                                
                                1.8%
                                                             
                            
                         | 
                        
                    
| Sysmiss | 61 |