Quarter	US Dollars, sum over component sub-periods
2006-01-01	16095700000.0000000
2006-04-01	16059500000.0000000
2006-07-01	-7948900000.0000000
2006-10-01	-14333300000.0000000
2007-01-01	11166100000.0000000
2007-04-01	14447300000.0000000
2007-07-01	8787100000.0000000
2007-10-01	10594400000.0000000
2008-01-01	14735900000.0000000
2008-04-01	19063500000.0000000
2008-07-01	1105500000.0000000
2008-10-01	-19563100000.0000000
2009-01-01	4423400000.0000000
2009-04-01	5662900000.0000000
2009-07-01	4402100000.0000000
2009-10-01	19823100000.0000000
2010-01-01	11433600000.0000000
2010-04-01	-933400000.0000000
2010-07-01	17186800000.0000000
2010-10-01	21229900000.0000000
2011-01-01	12675400000.0000000
2011-04-01	9059700000.0000000
2011-07-01	8504400000.0000000
2011-10-01	12009400000.0000000
2012-01-01	11903200000.0000000
2012-04-01	30216200000.0000000
2012-07-01	1914000000.0000000
2012-10-01	15176700000.0000000
2013-01-01	12577900000.0000000
2013-04-01	13052000000.0000000
2013-07-01	15040600000.0000000
2013-10-01	15796800000.0000000
2014-01-01	7662800000.0000000
2014-04-01	22557200000.0000000
2014-07-01	6880500000.0000000
2014-10-01	4280600000.0000005
2015-01-01	20290000000.0000000
2015-04-01	2465200000.0000000
2015-07-01	414600000.0000000
2015-10-01	-9292500000.0000000
2016-01-01	17400100000.0000000
2016-04-01	-1225400000.0000000
2016-07-01	11991600000.0000000
2016-10-01	1109900000.0000000
2017-01-01	23403600000.0000000
2017-04-01	3400300000.0000000
2017-07-01	876000000.0000000
2017-10-01	-3705700000.0000000
2018-01-01	13373200000.0000000
2018-04-01	5364800000.0000000