Quarter	US Dollars, sum over component sub-periods
2006-01-01	5767600000.0000000
2006-04-01	226700000.0000000
2006-07-01	-3966800000.0000000
2006-10-01	-11016800000.0000000
2007-01-01	-953700000.0000000
2007-04-01	601800000.0000000
2007-07-01	-4172899999.9999995
2007-10-01	-5643500000.0000000
2008-01-01	1409500000.0000000
2008-04-01	1201800000.0000000
2008-07-01	-11868500000.0000000
2008-10-01	-17615500000.0000000
2009-01-01	36200000.0000000
2009-04-01	-591300000.0000000
2009-07-01	-13131600000.0000000
2009-10-01	6604600000.0000000
2010-01-01	-6794000000.0000000
2010-04-01	-7606100000.0000000
2010-07-01	-1759800000.0000000
2010-10-01	-10309100000.0000000
2011-01-01	-9613900000.0000000
2011-04-01	-12719200000.0000000
2011-07-01	62400000.0000000
2011-10-01	-4310700000.0000000
2012-01-01	-13103500000.0000000
2012-04-01	16144400000.0000000
2012-07-01	-17158300000.0000000
2012-10-01	-10425400000.0000000
2013-01-01	-8571600000.0000000
2013-04-01	-4568700000.0000000
2013-07-01	-6354100000.0000000
2013-10-01	-22981600000.0000000
2014-01-01	-14601400000.0000000
2014-04-01	-9148600000.0000000
2014-07-01	-1121100000.0000000
2014-10-01	-18223500000.0000000
2015-01-01	-1377400000.0000000
2015-04-01	-13859700000.0000000
2015-07-01	-15960200000.0000000
2015-10-01	-11906400000.0000000
2016-01-01	-8686400000.0000000
2016-04-01	-11445300000.0000000
2016-07-01	-2175300000.0000000
2016-10-01	-10009900000.0000000
2017-01-01	-446000000.0000000
2017-04-01	-5541800000.0000000
2017-07-01	-11273600000.0000000
2017-10-01	-12453000000.0000000
2018-01-01	-9554900000.0000000
2018-04-01	-10585900000.0000000