Value | Category |
---|---|
1 | Electricity |
2 | Natural gas |
3 | Cylindrical gas |
4 | Kerosene |
5 | Coal |
6 | Firewood |
7 | Dung cake |
8 | Agricultural crop waste / straw |
9 | Other (specify) |
777 | Respondent does not want to respond |
888 | Not applicable |
999 | Don't know |
Sysmiss |