| Value | Category | 
                                    
                    
                        | 1 | 1. Given | 
                                    
                    
                        | 3 | 3. Same as res | 
                                    
                    
                        | 4 | 4. Inconsistent | 
                                    
                    
                        | 5 | 5. Partial info | 
                                    
                    
                        | 6 | 6. Othr country | 
                                    
                    
                        | 8 | 8. DK | 
                                    
                    
                        | Sysmiss |  | 
                            
            Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.