This is a correct answer to the following question about Ethanol fuel. Yes or no?
Answer: In 2011 worldwide ethanol fuel production reached 22.36 billion U.S. liquid gallons (bg) (84.6 billion liters), with the United States as the top producer with 13.9 bg (52.6 billion liters), accounting for 62.2% of global production, followed by Brazil with 5.6 bg (21.1 billion liters).
Question: what part of the corn is used in ethanol production
