| Value | Category | 
                                    
                    
                        | 1 | UP TO 0.5KM | 
                                    
                    
                        | 2 | >0.5-1KM | 
                                    
                    
                        | 3 | >1-1.5KM | 
                                    
                    
                        | 4 | >1.5-2KM | 
                                    
                    
                        | 5 | >2-2.5KM | 
                                    
                    
                        | 6 | >2.5-3KM | 
                                    
                    
                        | 7 | >3-3.5KM | 
                                    
                    
                        | 8 | >3.5-4KM | 
                                    
                    
                        | 9 | >4KM-4.5KM | 
                                    
                    
                        | 10 | >4.5-5KM | 
                                    
                    
                        | 11 | >5KM | 
                                    
                    
                        | 99 | omitted | 
                            
            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.