| Value | Category | Cases | |
|---|---|---|---|
| 1 | propelling water as rain | 57 |
64.8%
|
| 2 | pivot irrigation system | 17 |
19.3%
|
| 3 | dispersing drop by drop to the base of the plant | 6 |
6.8%
|
| 4 | other. specify 1: | 8 |
9.1%
|
| Sysmiss | 3109 |