| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 67 |
1.3%
|
| 1 | Central heating | 12 |
0.2%
|
| 2 | Electricity | 742 |
14.3%
|
| 3 | Natural gas | 2366 |
45.6%
|
| 4 | Liquefiedgas | 1 |
0%
|
| 5 | Oil and diesel | 1 |
0%
|
| 6 | Wood | 1722 |
33.2%
|
| 9 | Other | 273 |
5.3%
|