Year	U.S. Dollars
2000-01-01	600800000
2001-01-01	624700000
2002-01-01	586600000
2003-01-01	728700000
2004-01-01	1183000000
2005-01-01	1807100000
2006-01-01	1352000000
2007-01-01	2068000000
2008-01-01	2462800000
2009-01-01	2071900000
2010-01-01	2644800000
2011-01-01	3240500000
2012-01-01	4194400000
2013-01-01	4044100000
2014-01-01	3545300000
2015-01-01	2588700000
2016-01-01	2505400000
2017-01-01	2642600000
2018-01-01	2908800000
2019-01-01	2900100000