Quarter	US Dollars, sum over component sub-periods
2006-01-01	4648900000.0000000
2006-04-01	5378000000.0000000
2006-07-01	-7280500000.0000000
2006-10-01	268900000.0000000
2007-01-01	224100000.0000000
2007-04-01	-2059699999.9999998
2007-07-01	9851300000.0000000
2007-10-01	-9252300000.0000000
2008-01-01	2297700000.0000000
2008-04-01	-2084199999.9999998
2008-07-01	4401200000.0000000
2008-10-01	8166200000.0000000
2009-01-01	-8391100000.0000000
2009-04-01	6833300000.0000000
2009-07-01	-12842500000.0000000
2009-10-01	-7951000000.0000000
2010-01-01	4495200000.0000000
2010-04-01	-440900000.0000000
2010-07-01	2134699999.9999998
2010-10-01	-12537200000.0000000
2011-01-01	1195000000.0000000
2011-04-01	-7310000000.0000000
2011-07-01	12936700000.0000000
2011-10-01	-4254899999.9999995
2012-01-01	3389000000.0000000
2012-04-01	8713900000.0000000
2012-07-01	5150900000.0000000
2012-10-01	-2168900000.0000000
2013-01-01	3062400000.0000000
2013-04-01	15665900000.0000000
2013-07-01	3916300000.0000000
2013-10-01	-6843000000.0000000
2014-01-01	1927600000.0000000
2014-04-01	11020000000.0000000
2014-07-01	347700000.0000000
2014-10-01	-956200000.0000000
2015-01-01	10420600000.0000000
2015-04-01	4545600000.0000000
2015-07-01	10923300000.0000000
2015-10-01	758500000.0000000
2016-01-01	11790700000.0000000
2016-04-01	-4651000000.0000000
2016-07-01	12747600000.0000000
2016-10-01	8367799999.9999990
2017-01-01	15774100000.0000000
2017-04-01	-625900000.0000000
2017-07-01	-346500000.0000000
2017-10-01	-6836300000.0000000
2018-01-01	3710800000.0000000
2018-04-01	1584400000.0000000