| Value |
Category |
| 1 |
Electric heater |
| 2 |
Gas heater |
| 3 |
Kerosine heater |
| 4 |
Firewood |
| 5 |
Coal |
| 6 |
Stoves burning straw, weeds, manure |
| 7 |
Other |
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.