| Value | Category | 
                                    
                    
                        | 0 |  | 
                                    
                    
                        | 1 | kerosene | 
                                    
                    
                        | 2 | other oil | 
                                    
                    
                        | 3 | gas | 
                                    
                    
                        | 4 | candle | 
                                    
                    
                        | 5 | electricity | 
                                    
                    
                        | 8 | Others | 
                                    
                    
                        | 9 | no lighting arrangement | 
                            
            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.