| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 221 |
86.7%
|
| 2 | Mains | 2 |
0.8%
|
| 3 | Generator | 17 |
6.7%
|
| 4 | Battery (car) | 1 |
0.4%
|
| 5 | Solar | 10 |
3.9%
|
| 9 | Other | 4 |
1.6%
|
| Sysmiss | 148 |