| Value | Category | Cases | |
|---|---|---|---|
| 1 | Compost | 12 |
14.6%
|
| 2 | Nitrogen | 58 |
70.7%
|
| 3 | Phosphorus | 1 |
1.2%
|
| 4 | Don’t know | 11 |
13.4%
|
| Sysmiss | 852 |