| Value | Category | Cases | |
|---|---|---|---|
| -99 | don't know | 2 |
5.9%
|
| -88 | Other | 2 |
5.9%
|
| -77 | Not applicable | 1 |
2.9%
|
| 1 | insecticide | 2 |
5.9%
|
| 2 | fungicide | 1 |
2.9%
|
| 3 | herbicide | 26 |
76.5%
|
| Sysmiss | 1345 |