| Value | Category | 
                                    
                    
                        | 1 | POLES | 
                                    
                    
                        | 2 | POLES  & MUD | 
                                    
                    
                        | 3 | MUD ONLY | 
                                    
                    
                        | 4 | MUD BRICKS | 
                                    
                    
                        | 5 | BAKED/BURNT BRIC | 
                                    
                    
                        | 6 | CONCRETE, CEMENT | 
                                    
                    
                        | 7 | OTHER | 
                                    
                    
                        | 9 | NS | 
                            
            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.