| Value | Category | Cases | |
|---|---|---|---|
| 0 | Did not grow rice at that time | 57 |
18.6%
|
| 1 | Yields have decreased | 120 |
39.2%
|
| 2 | Yields unchanged | 44 |
14.4%
|
| 3 | Yields have increased | 85 |
27.8%
|
| Sysmiss | 4687 |