Year	U.S. Dollars
2000-01-01	1827800000
2001-01-01	1981500000
2002-01-01	2330300000
2003-01-01	2983200000
2004-01-01	4016600000
2005-01-01	4425200000
2006-01-01	6789600000
2007-01-01	7937500000
2008-01-01	8964100000
2009-01-01	10587100000
2010-01-01	9508900000
2011-01-01	7524700000
2012-01-01	8654600000
2013-01-01	7689400000
2014-01-01	7660000000
2015-01-01	7401100000
2016-01-01	5941400000
2017-01-01	5691100000
2018-01-01	6335600000
2019-01-01	6977900000