| Value | Category | Cases | |
|---|---|---|---|
| 1 | electricity | 302 |
17%
|
| 2 | wood | 944 |
53%
|
| 3 | gas | 472 |
26.5%
|
| 4 | oil, petrol | 8 |
0.4%
|
| 5 | coal | 1 |
0.1%
|
| 6 | none /no heating | 53 |
3%
|
| 7 | central heating | 0 |
0%
|
| 8 | other | 0 |
0%
|
| Sysmiss | 375 |