| Value | Category | Cases | |
|---|---|---|---|
| 1 | Sawdust | 128 |
0.9%
|
| 2 | Wood | 13677 |
91.9%
|
| 3 | Charcoal | 622 |
4.2%
|
| 4 | Electricity | 369 |
2.5%
|
| 5 | Gas | 26 |
0.2%
|
| 6 | Other | 7 |
0%
|
| 7 | Paraffin | 25 |
0.2%
|
| 8 | Coal | 21 |
0.1%
|
| 9 | Missing | 7 |
0%
|