Value | Category | Cases | |
---|---|---|---|
1 | Reduce the likelihood of diseases and insects | 12 |
22.6%
|
2 | Maintain the soil fertility | 19 |
35.8%
|
3 | Both (1) and (2) | 16 |
30.2%
|
4 | Don’t know | 6 |
11.3%
|
Sysmiss | 279 |