Year	U.S. Dollars
2000-01-01	986000000
2001-01-01	1083200000
2002-01-01	1207000000
2003-01-01	1529700000
2004-01-01	1762600000
2005-01-01	2241400000
2006-01-01	2682000000
2007-01-01	3875300000
2008-01-01	5071100000
2009-01-01	3925600000
2010-01-01	4537200000
2011-01-01	4917800000
2012-01-01	5131400000
2013-01-01	5476400000
2014-01-01	5487300000
2015-01-01	4418200000
2016-01-01	4516200000
2017-01-01	5672500000
2018-01-01	6053000000
2019-01-01	6294500000