Value | Category |
---|---|
-4 | Missing data |
-3 | Refused to answer |
-2 | Not applicable |
-1 | Don't know |
1 | Less than 5000km |
2 | 5000 to 10.000km |
3 | 10.000km to 15.000km |
4 | 15.000km to 20.000km |
5 | More than 20.000km |
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