| Value | Category | Cases | |
|---|---|---|---|
| 1 | Gas | 3686 |
98.6%
|
| 2 | Kerosene | 4 |
0.1%
|
| 3 | Electricity | 15 |
0.4%
|
| 4 | Wood | 32 |
0.9%
|
| 5 | Other | 2 |
0.1%
|