| Value | Category | Cases | |
|---|---|---|---|
| 1 | Gas | 9772 |
98.4%
|
| 2 | Kerosene | 44 |
0.4%
|
| 3 | Electricity | 31 |
0.3%
|
| 4 | Wood | 74 |
0.7%
|
| 5 | Other | 3 |
0%
|
| Sysmiss | 2 |