| Value | Category | Cases | |
|---|---|---|---|
| 1 | Gas | 47 |
17.5%
|
| 2 | Electricity | 1 |
0.4%
|
| 3 | Kerosene | 1 |
0.4%
|
| 4 | Coal | 1 |
0.4%
|
| 5 | Charcoal | 96 |
35.7%
|
| 6 | Wood | 119 |
44.2%
|
| 7 | Agriculture/crop | 2 |
0.7%
|
| 8 | Animal dung | 0 |
0%
|
| 9 | Shrubs/grass | 2 |
0.7%
|
| 10 | Other | 0 |
0%
|
| Sysmiss | 3669 |