| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not used very often, or used for a small part of the area irrigated | 28 |
26.9%
|
| 2 | Used for a significant part of the area irrigated | 18 |
17.3%
|
| 3 | Main irrigation source used | 58 |
55.8%
|
| Sysmiss | 5551 |