| Value | Category | Cases | |
|---|---|---|---|
| 1 | light - this includes sandy soils that are easy to | 142 |
42.5%
|
| 2 | medium - this includes loamy soils that are moderately | 84 |
25.1%
|
| 3 | heavy - this includes clayey soils that are hard | 108 |
32.3%
|
| Sysmiss | 120 |