Year	US Dollars
2000-01-01	3130300000
2001-01-01	1976600000
2002-01-01	1698800000
2003-01-01	1453100000
2004-01-01	902500000
2005-01-01	5177900000
2006-01-01	5662900000
2007-01-01	2460100000
2008-01-01	5016600000
2009-01-01	-503300000
2010-01-01	4882200000
2011-01-01	8847300000
2012-01-01	7818400000
2013-01-01	5201600000
2014-01-01	4211700000
2015-01-01	-10956500000
2016-01-01	-12319900000
2017-01-01	-8557200000
2018-01-01	-5136800000
2019-01-01	-5149100000