| Value | Category | Cases | |
|---|---|---|---|
| 1 | Gas | 17877 |
99.8%
|
| 2 | Electricity | 16 |
0.1%
|
| 3 | Kerosene | 8 |
0%
|
| 4 | Wood/coal/animal waste | 10 |
0.1%
|
| 96 | Other | 0 |
0%
|
| Sysmiss | 2089 |