| Value | Category | Cases | |
|---|---|---|---|
| 1 | DAP | 1 |
20%
|
| 2 | Potash | 1 |
20%
|
| 3 | Borax | 0 |
0%
|
| 4 | Don’t know | 3 |
60%
|
| Sysmiss | 398 |