| Value | Category | Cases | |
|---|---|---|---|
| 1 | Nitrate | 13 |
12.6%
|
| 2 | Phosphate | 16 |
15.5%
|
| 3 | Potash | 7 |
6.8%
|
| 4 | Mixed | 67 |
65%
|
| Sysmiss | 6689 |