Value | Category |
---|---|
-9 | don't know |
-8 | refused to answer |
-7 | not applicable |
-6 | still in process |
-5 | application denied |
-4 | skipped |
-3 | not provided |
1 | more expensive to use generator |
2 | about the same cost |
3 | more expensive to use power from grid |
Sysmiss |