| Value | Category | Cases | |
|---|---|---|---|
| -99 | don't know | 2 |
7.1%
|
| -88 | Other | 1 |
3.6%
|
| -77 | Not applicable | 2 |
7.1%
|
| 1 | insecticide | 5 |
17.9%
|
| 2 | fungicide | 4 |
14.3%
|
| 3 | herbicide | 14 |
50%
|
| Sysmiss | 1351 |