| Value | Category | Cases | |
|---|---|---|---|
| 1 | Nitrate | 21 |
12.7%
|
| 2 | Phosphate | 10 |
6%
|
| 3 | Potash | 1 |
0.6%
|
| 4 | Mixed | 134 |
80.7%
|
| Sysmiss | 5968 |