Year	US Dollars
2002-01-01	1489100000
2003-01-01	1360900000
2004-01-01	1929000000
2005-01-01	1888000000
2006-01-01	1495700000
2007-01-01	5471200000
2008-01-01	3477100000
2009-01-01	5011300000
2010-01-01	4506100000
2011-01-01	4749800000
2012-01-01	2195400000
2013-01-01	63100000
2014-01-01	1143300000
2015-01-01	1502600000
2016-01-01	1372000000
2017-01-01	328300000
2018-01-01	126700000
2019-01-01	-34800000