Year	US Dollars
2008-01-01	-856100000
2009-01-01	-5118200000
2010-01-01	-1347900000
2011-01-01	-288300000
2012-01-01	-5840000000
2013-01-01	-5668100000
2014-01-01	-5020200000
2015-01-01	-6545900000
2016-01-01	-5126600000
2017-01-01	-3203200000
2018-01-01	-2565500000
2019-01-01	-2934500000