| Valeur | Modalité | Cas | |
|---|---|---|---|
| 0 | Electricity | 50 |
4%
|
| 1 | Gas | 758 |
60.8%
|
| 2 | Charcoal | 390 |
31.3%
|
| 3 | Firewood | 3 |
0.2%
|
| 4 | Other | 3 |
0.2%
|
| 5 | None | 9 |
0.7%
|
| Sysmiss | 33 |