Year	U.S. Dollars
2000-01-01	19860800000
2001-01-01	20978600000
2002-01-01	22758400000
2003-01-01	21701800000
2004-01-01	25203600000
2005-01-01	28880900000
2006-01-01	33823600000
2007-01-01	40487800000
2008-01-01	52630700000
2009-01-01	53938500000
2010-01-01	60042900000