| Value | Category | 
                                    
                    
                        | 0 | 0. Same hh as other study year | 
                                    
                    
                        | 1 | 1. Not interviewed--hh moved | 
                                    
                    
                        | 2 | 2. Not interviewed--they refused | 
                                    
                    
                        | 3 | 3. No one living in house--death, jail, demolition, tenant c | 
                                    
                    
                        | 4 | 4. House sold--new owner | 
                                    
                    
                        | 5 | 5. Splinter household | 
                                    
                    
                        | 6 | 6. Interviewed no mems in common with other study year | 
                                    
                    
                        | 7 | 7. Data lost for hh | 
                                    
                    
                        | 8 | 8. Interviewed in 2004 but no members in common with 2002 | 
                                    
                    
                        | 9 | 9. House sold before 2004, new owner | 
                                    
                    
                        | 10 | 10. Not interviewed--wrong hh | 
                                    
                    
                        | 11 | 11. Not Interviewed--Can't find hh | 
                                    
                    
                        | 12 | 12. No hh module, head of hh refused | 
                            
            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.