| Value | Category | Cases | |
|---|---|---|---|
| 1 | none (rain only) | 6395 |
94.7%
|
| 2 | hand-watering | 343 |
5.1%
|
| 3 | canals / sluices | 7 |
0.1%
|
| 4 | pump / mechanized | 6 |
0.1%
|
| Sysmiss | 2 |