Chemical, Fertilizer, Labor, and Feed Expense by Year-United States:2006-2010 Year Chemical Fertilizer Labor Feed Mil. $ Mil. $ Mil. $ Mil. $ 2006 9,000 13,300 24,500 31,400 2007 10,500 17,700 28,600 41,900 2008 11,700 22,500 29,700 46,900 2009 11,500 20,100 28,800 45,000 2010 10,600 21,000 27,400 45,400