| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 24 |
1.1%
|
| 1 | Central heating | 5 |
0.2%
|
| 2 | Electricity | 556 |
24.5%
|
| 3 | Natural gas | 287 |
12.6%
|
| 4 | Liquefiedgas | 8 |
0.4%
|
| 5 | Oil and diesel | 37 |
1.6%
|
| 6 | Wood | 617 |
27.2%
|
| 9 | Other | 738 |
32.5%
|
| Sysmiss | 5600 |