| Value | Category | Cases | |
|---|---|---|---|
| 1 | light - this includes sandy soils that are easy to | 75 |
33.3%
|
| 2 | medium - this includes loamy soils that are moderately | 118 |
52.4%
|
| 3 | heavy - this includes clayey soils that are hard | 32 |
14.2%
|
| Sysmiss | 187 |