| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 297 | 
                            
                             
                                
                                12.7%
                                                             
                            
                         | 
                        
                    
| 2 | no | 244 | 
                            
                             
                                
                                10.4%
                                                             
                            
                         | 
                        
                    
| 9 | not applicable | 1723 | 
                            
                             
                                
                                73.6%
                                                             
                            
                         | 
                        
                    
| 9999995 | missing:impute | 76 | 
                            
                             
                                
                                3.2%
                                                             
                            
                         | 
                        
                    
| Sysmiss | 30 |