| Value | Category |
|---|---|
| -1 | refuse |
| 1 | It was main use - more than 80% |
| 2 | It was important use - 60-80% |
| 3 | It was medium use - 40-60% |
| 4 | It was less important use - 20-40% |
| 5 | It was not significant use - Less than 20% |
| 6 | It was not used - 0% |
| 15 | vet means |
| 16 | for the household |
| 17 | fuel |
| 18 | purchasing the farm |
| 19 | for tillage |
| Sysmiss |