| Value | Category | Cases | |
|---|---|---|---|
| 1 | Nitrate | 29 |
26.4%
|
| 2 | Phosphate | 27 |
24.5%
|
| 3 | Potash | 2 |
1.8%
|
| 4 | Mixed | 52 |
47.3%
|
| Sysmiss | 7997 |