| Value | Category | 
                                    
                    
                        | 1 | 01. Electricity | 
                                    
                    
                        | 2 | 02. Gas | 
                                    
                    
                        | 3 | 03. Ker stove | 
                                    
                    
                        | 4 | 04. Firewood | 
                                    
                    
                        | 5 | 05. Charcoal | 
                                    
                    
                        | 6 | 06. Other | 
                                    
                    
                        | 96 | 96. Do not cook | 
                                    
                    
                        | 98 | 98. DK | 
                            
            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.