| Value | Category | 
                                    
                    
                        | 1 | North - Urban | 
                                    
                    
                        | 2 | North - Rural | 
                                    
                    
                        | 3 | Center - Urban | 
                                    
                    
                        | 4 | Center - Rural | 
                                    
                    
                        | 5 | South - Urban | 
                                    
                    
                        | 6 | South - Rural | 
                            
            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.