| Value | Category | Cases | |
|---|---|---|---|
| 6 | Coal (stone coal, lignite, wood coal) | 205 |
27.8%
|
| 7 | Charcoal | 1 |
0.1%
|
| 8 | Wood | 461 |
62.6%
|
| 9 | Straw, shrubs, grass | 6 |
0.8%
|
| 10 | Dung | 51 |
6.9%
|
| 11 | Sawdust | 0 |
0%
|
| 12 | Tire, rubber | 0 |
0%
|
| 96 | Other | 13 |
1.8%
|
| 99 | Missing | 0 |
0%
|
| Sysmiss | 263 |