Corn production in the US has grown substantially, with output doubling since the 1980s. The usage of this production also diversified as a shift toward corn being used more extensively as fuel (ethanol) emerged in the early 2010s. Currently, around 37% of the total corn production in the US is used to produce ethanol, which meets 10% of the nation's gasoline demand. The remaining corn crop is allocated for human food, beverages, and various industrial uses within the US, or exported to other countries for food or feed purposes.