| Value | Category | Cases | |
|---|---|---|---|
| 1 | Wood | 995 | 
                                    
                                    87.1%
                                 | 
| 2 | Charcoal | 126 | 
                                    
                                    11%
                                 | 
| 3 | Gas | 7 | 
                                    
                                    0.6%
                                 | 
| 4 | Electricity | 1 | 
                                    
                                    0.1%
                                 | 
| 5 | Kerosene | 12 | 
                                    
                                    1.1%
                                 | 
| 6 | Other | 1 | 
                                    
                                    0.1%
                                 |