| Value | Category | 
                                    
                    
                        | -88 | don't know | 
                                    
                    
                        | -66 | refuse to answer | 
                                    
                    
                        | 1 | Self | 
                                    
                    
                        | 2 | Spouse | 
                                    
                    
                        | 3 | Son/Daughter | 
                                    
                    
                        | 4 | Parent | 
                                    
                    
                        | 5 | Sibling | 
                                    
                    
                        | 6 | other relative | 
                                    
                    
                        | 7 | no relation | 
                            
            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.