Year	US Dollars
2000-01-01	-16100000
2001-01-01	-52300000
2002-01-01	-15100000
2003-01-01	-4800000
2004-01-01	-57000000
2005-01-01	-18900000
2006-01-01	-21400000
2007-01-01	-495100000
2008-01-01	47600000
2009-01-01	-180300000
2010-01-01	-540300000
2011-01-01	-476500000
2012-01-01	-698700000
2013-01-01	-659200000
2014-01-01	-261200000
2015-01-01	-471800000
2016-01-01	-264700000
2017-01-01	-188800000
2018-01-01	-398300000
2019-01-01	-388200000