| Value | Category | Cases | |
|---|---|---|---|
| 1 | City power | 17582 |
83.7%
|
| 2 | Generator | 1167 |
5.6%
|
| 3 | Both city power and generator | 959 |
4.6%
|
| 4 | Kerosene | 120 |
0.6%
|
| 5 | Candle | 887 |
4.2%
|
| 6 | Battery | 101 |
0.5%
|
| 7 | None | 15 |
0.1%
|
| 8 | Other | 9 |
0%
|
| 9 | 160 |
0.8%
|