| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 3778 |
0.3%
|
| 1 | Electricity | 1015921 |
85.1%
|
| 2 | Gas | 2833 |
0.2%
|
| 3 | Paraffin | 34190 |
2.9%
|
| 6 | Candles | 133185 |
11.2%
|
| 8 | Solar | 4215 |
0.4%
|