| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not used very often, or used for a small part of the area irrigated | 24 |
10.6%
|
| 2 | Used for a significant part of the area irrigated | 30 |
13.3%
|
| 3 | Main irrigation method used | 172 |
76.1%
|
| Sysmiss | 5429 |