| Value | Category | 
                                    
                    
                        | 00 | Household record | 
                                    
                    
                        | 01 | 1 | 
                                    
                    
                        | 02 | 2 | 
                                    
                    
                        | 03 | 3 | 
                                    
                    
                        | 04 | 4 | 
                                    
                    
                        | 05 | 5 | 
                                    
                    
                        | 06 | 6 | 
                                    
                    
                        | 07 | 7 | 
                                    
                    
                        | 08 | 8 | 
                                    
                    
                        | 09 | 9 | 
                                    
                    
                        | 10 | 10 | 
                                    
                    
                        | 11 | 11 | 
                                    
                    
                        | 12 | 12 | 
                                    
                    
                        | 13 | 13 | 
                                    
                    
                        | 14 | 14 | 
                                    
                    
                        | 15 | 15 | 
                                    
                    
                        | 16 | 16 | 
                                    
                    
                        | 17 | 17 | 
                                    
                    
                        | 18 | 18 | 
                                    
                    
                        | 19 | 19 | 
                                    
                    
                        | 20 | 20 | 
                                    
                    
                        | 21 | 21 | 
                            
            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.