| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 705 |
22.3%
|
| 2 | Once or twice a year | 642 |
20.3%
|
| 3 | Several times a year | 842 |
26.6%
|
| 4 | At least once a month | 316 |
10%
|
| 5 | At least once a week | 202 |
6.4%
|
| 8 | Uncertain | 38 |
1.2%
|
| 9 | Not applicable - no electricity connection | 416 |
13.2%
|
| Sysmiss | 3 |