| Value | Category |
|---|---|
| 1 | Primary source of energy for lighting : kerosene |
| 2 | Primary source of energy for lighting : other oil |
| 3 | Primary source of energy for lighting : gas |
| 4 | Primary source of energy for lighting : candle |
| 5 | Primary source of energy for lighting : electricity |
| 6 | No lighting arrangement |
| 9 | Primary source of energy for lighting : others |