| Value | Category | Cases | |
|---|---|---|---|
| 1 | light - this includes sandy soils that are easy to | 164 |
19.5%
|
| 2 | medium - this includes loamy soils that are moderately | 429 |
51%
|
| 3 | heavy - this includes clayey soils that are hard | 248 |
29.5%
|
| Sysmiss | 858 |