| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 96 |
1.9%
|
| 1 | Central heating | 5 |
0.1%
|
| 2 | Electricity | 719 |
13.9%
|
| 3 | Natural gas | 2201 |
42.5%
|
| 4 | Liquefied gas | 0 |
0%
|
| 5 | Oil and diesel | 2 |
0%
|
| 6 | Wood | 1915 |
36.9%
|
| 6.9 | 3 |
0.1%
|
|
| 9 | Other | 243 |
4.7%
|