| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 0 | No exist | 425 | 422 |
34.2%
|
| 1 | gas | 197 | 199 |
16.2%
|
| 2 | Electricity | 279 | 279 |
22.7%
|
| 3 | Wood | 260 | 261 |
21.2%
|
| 4 | olive cake | 14 | 16 |
1.3%
|
| 5 | coal | 0 | 0 |
0%
|
| 6 | Other/ specify | 56 | 54 |
4.4%
|