Year	U.S. Dollars
2000-01-01	401400000
2001-01-01	401500000
2002-01-01	405700000
2003-01-01	362400000
2004-01-01	491600000
2005-01-01	704700000
2006-01-01	1414700000
2007-01-01	1451300000
2008-01-01	1810100000
2009-01-01	1481600000
2010-01-01	2203700000
2011-01-01	2927100000
2012-01-01	2789800000
2013-01-01	2809800000
2014-01-01	2103500000
2015-01-01	1634700000
2016-01-01	1670600000
2017-01-01	1989400000
2018-01-01	2257200000
2019-01-01	2297800000