| Value | Category | Cases | |
|---|---|---|---|
| -9 | Missing | 0 |
0%
|
| -8 | Uncodeabel | 0 |
0%
|
| -7 | N/a | 0 |
0%
|
| 0 | Did not grow maize in 2002 | 112 |
8.3%
|
| 1 | Yields have decreased | 645 |
47.7%
|
| 2 | Yields unchanged | 187 |
13.8%
|
| 3 | Yields have increased | 407 |
30.1%
|
| Sysmiss | 3642 |