| Value | Category | Cases | |
|---|---|---|---|
| 1 | Gas | 19963 |
99.8%
|
| 2 | Electricity | 17 |
0.1%
|
| 3 | Kerosene | 9 |
0%
|
| 4 | Wood/coal/animal waste | 11 |
0.1%
|
| 96 | Other | 0 |
0%
|
| Sysmiss | 5058 |