| Value | Category | Cases | |
|---|---|---|---|
| 1 | Compost | 12 |
75%
|
| 2 | Nitrogen | 2 |
12.5%
|
| 3 | Potash | 0 |
0%
|
| 4 | Don't know | 2 |
12.5%
|
| Sysmiss | 76 |