| Value | Category | 
                                    
                    
                        | 1 | Electricidade | 
                                    
                    
                        | 2 | Gás | 
                                    
                    
                        | 3 | Carvão | 
                                    
                    
                        | 4 | Lenha | 
                                    
                    
                        | 5 | Outros | 
                                    
                    
                        | 6 | Não cozinha | 
                                    
                    
                        | 7 | Petróleo | 
                                    
                    
                        | 8 | Fogareiro | 
                            
            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.