| Value | Category | Cases | |
|---|---|---|---|
| 1 | Nitrate | 23 |
34.8%
|
| 2 | Phosphate | 14 |
21.2%
|
| 3 | Potash | 10 |
15.2%
|
| 4 | Mixed | 19 |
28.8%
|
| Sysmiss | 6434 |