| Value | Category | 
                                    
                    
                        | 11 | Earth/dung | 
                                    
                    
                        | 21 | Wood planks | 
                                    
                    
                        | 31 | Parquet,polished wd | 
                                    
                    
                        | 32 | Vinyl, asphalt strip | 
                                    
                    
                        | 33 | Ceramic tiles | 
                                    
                    
                        | 34 | Cement | 
                                    
                    
                        | 35 | Carpet | 
                                    
                    
                        | 96 | Other | 
                            
            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.