| Value | Category | Cases | |
|---|---|---|---|
| 1 | Nitrate | 4 |
17.4%
|
| 2 | Phosphate | 0 |
0%
|
| 3 | Potash | 0 |
0%
|
| 4 | Mixed | 19 |
82.6%
|
| Sysmiss | 226 |