| Value | Category | Cases | |
|---|---|---|---|
| 1 | light - this includes sandy soils that are easy to | 118 |
13.1%
|
| 2 | medium - this includes loamy soils that are moderately | 661 |
73.4%
|
| 3 | heavy - this includes clayey soils that are hard | 122 |
13.5%
|
| Sysmiss | 534 |