World Corn production
Corn, also known as maize, is a grain plant cultivated for food. The origin of this grain remains unknown, however, many historians believe that corn was first domesticated in Mexico's Tehuacan Valley. Types of corn include sweet corn, popcorn, pod corn, flint corn, flour corn, waxy corn and dent corn.
Corn is one of the most important crops in the United States. Over the last five years, the country's corn farmers experienced constant increases in annual revenues. In 2014, the revenue of U.S. corn farming reached 63 billion U.S. dollars. That year, the U.S. was responsible for more than one-third of the global corn production. Furthermore, corn is the most commonly produced grain feed in the U.S. In 2012, about 46 percent of U.S. corn production was used as livestock feed while some 27 percent was used for producing ethanol.
Iowa and Illinois were the top U.S. states based on production value of corn for grain in 2013. That year, Iowa's corn for grain production value amounted to approximately 9.61 billion U.S. dollars. In 2014, the United States exported around 50.71 million metric tons of corn, making the nation the world's largest corn exporter. Japan and Mexico were the leading buyers of U.S. corn during this period, purchasing approximately 11.86 million metric tons and 10.48 million metric tons respectively.