1.1 percent of GDP in 1973 to a deficit of 0.1 percent in 1991.
Corn exports decreased as a percentage of GDP from 1973 to 1991
mnli hypothesis: Corn exports decreased as a percentage of GDP from 1973 to 1991 premise: 1.1 percent of GDP in 1973 to a deficit of 0.1 percent in 1991.