From: A GIS-based method for household recruitment in a prospective pesticide exposure study
SOY TO CORN | ||||
---|---|---|---|---|
 | 99–00 | 00–01 | 01–02 | 02–03 |
Acres | 6,912,864 | 6,919,889 | 6,858,970 | 6,750,093 |
Percent | 67.37 | 68.98 | 67.24 | 63.73 |
CORN TO SOY | ||||
 | 99–00 | 00–01 | 01–02 | 02–03 |
Acres | 6,837,881 | 6.883,277 | 6.817,839 | 6,938,986 |
Percent | 61.82 | 66.00 | 66.33 | 64.29 |