Quarter	US Dollars, sum over component sub-periods
2006-01-01	1898300000.000000
2006-04-01	8893800000.000000
2006-07-01	-1487900000.000000
2006-10-01	-7144600000.000000
2007-01-01	-486500000.000000
2007-04-01	2081500000.000000
2007-07-01	4199200000.000000
2007-10-01	5019600000.000000
2008-01-01	3879300000.000000
2008-04-01	2917400000.000000
2008-07-01	4868800000.000000
2008-10-01	-3569100000.000000
2009-01-01	-9644100000.000000
2009-04-01	-4208000000.000000
2009-07-01	6237800000.000000
2009-10-01	12116200000.000000
2010-01-01	1881700000.000000
2010-04-01	4056800000.000000
2010-07-01	7847200000.000000
2010-10-01	6928200000.000000
2011-01-01	7389500000.000000
2011-04-01	5351700000.000000
2011-07-01	6957400000.000000
2011-10-01	8531799999.999999
2012-01-01	6676000000.000000
2012-04-01	6625800000.000000
2012-07-01	1318700000.000000
2012-10-01	2903600000.000000
2013-01-01	5596200000.000000
2013-04-01	1163400000.000000
2013-07-01	5068300000.000000
2013-10-01	5960800000.000000
2014-01-01	5049200000.000000
2014-04-01	6405000000.000000
2014-07-01	2035500000.000000
2014-10-01	2839000000.000000
2015-01-01	3054700000.000000
2015-04-01	-3209600000.000000
2015-07-01	-11904500000.000000
2015-10-01	-3607200000.000000
2016-01-01	388000000.000000
2016-04-01	-1389000000.000000
2016-07-01	1676000000.000000
2016-10-01	-810700000.000000
2017-01-01	127800000.000000
2017-04-01	-3985800000.000000
2017-07-01	-1193300000.000000
2017-10-01	286200000.000000
2018-01-01	2128400000.000000
2018-04-01	911300000.000000