Year	U.S. Dollars
2000-01-01	5175000000
2001-01-01	5823000000
2002-01-01	6840300000
2003-01-01	8356100000
2004-01-01	10418300000
2005-01-01	12994700000
2006-01-01	12262600000
2007-01-01	15755500000
2008-01-01	19931300000
2009-01-01	16933200000
2010-01-01	20392400000