| Value | Category | 
                                    
                    
                        | 1 | 1. Not at home | 
                                    
                    
                        | 2 | 2. Ill | 
                                    
                    
                        | 3 | 3. Refused | 
                                    
                    
                        | 4 | 4. Lang prob | 
                                    
                    
                        | 5 | 5. Other | 
                                    
                    
                        | 6 | 6. Moved | 
                                    
                    
                        | 7 | 7. Dead | 
                                    
                    
                        | 8 | 8. Supp prob | 
                                    
                    
                        | 9 | 9. Old/disable | 
                                    
                    
                        | 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.