| Value | Category | Cases | |
|---|---|---|---|
| 1 | Gas | 2 |
0.2%
|
| 2 | Electricity | 18 |
1.4%
|
| 3 | Kerosene | 8 |
0.6%
|
| 4 | Coal | 7 |
0.5%
|
| 5 | Charcoal | 734 |
55.5%
|
| 6 | Wood | 538 |
40.7%
|
| 7 | Agriculture/crop | 6 |
0.5%
|
| 8 | Animal dung | 3 |
0.2%
|
| 9 | Shrubs/grass | 5 |
0.4%
|
| 10 | Other | 1 |
0.1%
|
| Sysmiss | 3095 |