| Value | Category | Cases | |
|---|---|---|---|
| -99 | don't know | 1 |
3.6%
|
| -88 | Other | 0 |
0%
|
| -77 | Not applicable | 1 |
3.6%
|
| 1 | insecticide | 3 |
10.7%
|
| 2 | fungicide | 1 |
3.6%
|
| 3 | herbicide | 22 |
78.6%
|
| Sysmiss | 1351 |