| Value | Category | Cases | |
|---|---|---|---|
| 1 | light - this includes sandy soils that are easy to | 41 |
22.8%
|
| 2 | medium - this includes loamy soils that are moderately | 100 |
55.6%
|
| 3 | heavy - this includes clayey soils that are hard | 39 |
21.7%
|
| Sysmiss | 147 |