| Value | Category | 
                                    
                    
                        | 0 | Not applicable(present) | 
                                    
                    
                        | 1 | Dropped household/person | 
                                    
                    
                        | 2 | Person joined in Q2, Q3, Q4 | 
                                    
                    
                        | 3 | Unknown reason | 
                            
            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.