| Value | Category | Cases | |
|---|---|---|---|
| 1 | light - this includes sandy soils that are easy to | 67 |
28.3%
|
| 2 | medium - this includes loamy soils that are moderately | 101 |
42.6%
|
| 3 | heavy - this includes clayey soils that are hard | 69 |
29.1%
|
| Sysmiss | 362 |