| Value | Category |
|---|---|
| -5 | other |
| -4 | missing data |
| -3 | refused to answer |
| -2 | not applicable |
| -1 | do not know |
| 1 | letting farm property to others |
| 2 | sales of manure of straw |
| 3 | hiring out of livestock for draft |
| 4 | hiring out livestock for stud services |
| 5 | custom work of machine hire for others |
| 6 | agricultural subsidies or drought relief payments |
| 7 | other |