| Value | Category | Cases | |
|---|---|---|---|
| 1 | loss of top soil | 6363 |
78.4%
|
| 2 | change in soil color | 207 |
2.6%
|
| 3 | reduction of the yield over time | 1412 |
17.4%
|
| 4 | Other | 130 |
1.6%
|
| 9 | NA | 0 |
0%
|