Year	U.S. Dollars
2000-01-01	1368000000
2001-01-01	1525400000
2002-01-01	1606400000
2003-01-01	1919500000
2004-01-01	2214500000
2005-01-01	2459000000
2006-01-01	2836500000
2007-01-01	3807000000
2008-01-01	5139400000
2009-01-01	4690100000
2010-01-01	4794400000
2011-01-01	6197800000
2012-01-01	6604100000
2013-01-01	7335000000
2014-01-01	7466900000
2015-01-01	6678200000
2016-01-01	6551300000
2017-01-01	7163400000
2018-01-01	7588300000
2019-01-01	8028800000