| Value | Category | 
                                    
                    
                        | 1 | Peri-urban | 
                                    
                    
                        | 2 | Rural | 
                                    
                    
                        | 3 | Urban core | 
                                    
                    
                        | 4 | Urban periphery, no slum | 
                                    
                    
                        | 5 | Urban periphery, slum | 
                            
            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.