| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not used very often, or used for a small part of the area irrigated | 73 |
6.5%
|
| 2 | Used for a significant part of the area irrigated | 37 |
3.3%
|
| 3 | Main irrigation source used | 1009 |
90.2%
|
| Sysmiss | 4536 |