Year	US Dollars
2000-01-01	-97600000
2001-01-01	-130700000
2002-01-01	35000000
2003-01-01	-175300000
2004-01-01	-517100000
2005-01-01	-876800000
2006-01-01	147600000
2007-01-01	-405700000
2008-01-01	-479300000
2009-01-01	-491700000
2010-01-01	-357100000
2011-01-01	-259500000
2012-01-01	-1263600000
2013-01-01	-1262000000
2014-01-01	-1470700000
2015-01-01	-956100000
2016-01-01	-706800000
2017-01-01	-513100000
2018-01-01	-538100000
2019-01-01	-465700000