| Value | Category | Cases | |
|---|---|---|---|
| 1 | Nitrate | 5 |
7.5%
|
| 2 | Phosphate | 6 |
9%
|
| 3 | Potash | 7 |
10.4%
|
| 4 | Mixed | 49 |
73.1%
|
| Sysmiss | 6689 |