| Value | Category | Cases | |
|---|---|---|---|
| 1 | Electricity | 955 | 
                                    
                                    95.8%
                                 | 
| 2 | Gas | 11 | 
                                    
                                    1.1%
                                 | 
| 3 | Paraffin | 28 | 
                                    
                                    2.8%
                                 | 
| 4 | Wood | 3 | 
                                    
                                    0.3%
                                 | 
| 5 | Coal | 0 | 
                                    
                                    0%
                                 | 
| 6 | Candles | 0 | 
                                    
                                    0%
                                 | 
| 7 | Animal dung | 0 | 
                                    
                                    0%
                                 | 
| 8 | Solar energy | 0 | 
                                    
                                    0%
                                 | 
| 9 | Other | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 2 |