| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 265 |
12.8%
|
| 1 | Central heating | 3 |
0.1%
|
| 2 | Electricity | 615 |
29.7%
|
| 3 | Natural gas | 254 |
12.3%
|
| 4 | Liquefied gas | 7 |
0.3%
|
| 5 | Oil and diesel | 0 |
0%
|
| 6 | Wood | 353 |
17%
|
| 9 | Other | 575 |
27.8%
|
| Sysmiss | 5704 |