Year	U.S. Dollars
2000-01-01	1293700000
2001-01-01	1295500000
2002-01-01	1324400000
2003-01-01	1563100000
2004-01-01	1831100000
2005-01-01	2183900000
2006-01-01	3040700000
2007-01-01	3331400000
2008-01-01	3946800000
2009-01-01	3669500000
2010-01-01	4329600000
2011-01-01	5176100000
2012-01-01	5233500000
2013-01-01	5724200000
2014-01-01	5391500000
2015-01-01	4839400000
2016-01-01	4754700000
2017-01-01	5115600000
2018-01-01	5434700000
2019-01-01	5540500000