| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Gas | 3027 | 3027 | 
                                    
                                    96.8%
                                 | 
| 2 | Kerosene | 98 | 99 | 
                                    
                                    3.2%
                                 | 
| 3 | Wood | 0 | 0 | 
                                    
                                    0%
                                 | 
| 4 | other | 0 | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 2 | 2 |