What are the top five most produced grains?

Wheat , corn , rice, barley, oats, usa raises, most of the wheat, corn , oats, and barley, vietnam , and china, the rice, even tho , usa raises a lot of rice, but with chinas popalation , and vietnams rice paddies, they are big rice , eaters, and growers

Ok in part 2 , after the major grains there are the top 5 grains that are used in the world, that we here in america , dont use a lot of some of them , and numbers , to back them , and what they are used for , Grain 2006 (Mt) 2005 (Mt) 1961 (Mt)
Maize 695,287,651 712,877,757 205,004,683 A staple food of peoples in North America, South America, and Africa and of livestock worldwide; often called "corn" or "Indian corn" in North America, Australia, and New Zealand.
Rice[3] 634,575,804 631,508,532 284,654,697 The primary cereal of tropical regions
Wheat 605,256,883 628,697,531 222,357,231 The primary cereal of temperate regions
Barley 138,704,379 141,334,270 72,411,104 Grown for malting and livestock on land too poor or too cold for wheat
Sorghum 56,525,765 59,214,205 40,931,625 Important staple food in Asia and Africa and popular worldwide for livestock