| Value |
Category |
| 1 |
electricity |
| 2 |
wood |
| 3 |
gas |
| 4 |
oil, petrol |
| 5 |
coal |
| 6 |
none /no heating |
| 7 |
central heating |
| 8 |
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.