For the 2002-03 season an estimated 3.2 million acres of rice were planted in the United States, yielding a projected record 6,611 pounds per acre. That season, projected rice exports also reached...
598 Million Grains
It varies from year to year, of course, but world production averages around 440 million metric tons a year.
Lots...
Worldwide, over 750 million metric tons of maize, or corn, are produced each year.