| Value | Category | Cases | |
|---|---|---|---|
| 1 | Nitrate | 9 |
20.9%
|
| 2 | Phosphate | 5 |
11.6%
|
| 3 | Potash | 0 |
0%
|
| 4 | mixed | 29 |
67.4%
|
| Sysmiss | 9746 |