| Value |
Category |
| 0 |
NONE |
| 1 |
ELECTRICITY |
| 2 |
WOOD |
| 3 |
GAS |
| 4 |
OIL, PETROL |
| 5 |
COAL |
| 6 |
DUNG |
| 7 |
COTTON STALKS |
| 999 |
OTHER, SPECIFY |
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.