Quarter	US Dollars, sum over component sub-periods
2005-01-01	3045505599.01505000
2005-04-01	-233549875.40752100
2005-07-01	-1656028585.02972000
2005-10-01	-2668017496.42446040
2006-01-01	-4974609620.17853100
2006-04-01	379826498.51578800
2006-07-01	-338087351.65062000
2006-10-01	-1063643236.81141000
2007-01-01	1175541107.05496000
2007-04-01	-374746191.56334400
2007-07-01	1611994942.64079000
2007-10-01	-2622733928.75225000
2008-01-01	2124768046.81320980
2008-04-01	-3244162725.79146000
2008-07-01	-1101028439.83049000
2008-10-01	9655015645.56199000
2009-01-01	8246682890.69940000
2009-04-01	12932146390.36060000
2009-07-01	10420905803.48100000
2009-10-01	-17859113.34396820
2010-01-01	3249494473.62044000
2010-04-01	8754977966.82584000
2010-07-01	-782909092.82112500
2010-10-01	-6930022880.74310000
2011-01-01	4551850209.87181000
2011-04-01	1519965889.84627000
2011-07-01	6345943882.75585000
2011-10-01	-1863105799.76391000
2012-01-01	-1596309142.41838980
2012-04-01	4837568009.77728000
2012-07-01	-622943955.39870700
2012-10-01	-771581091.49870200
2013-01-01	-3663643131.70813000
2013-04-01	2008259234.06803000
2013-07-01	517285250.32015294
2013-10-01	35394946.31770880
2014-01-01	-4537221229.54671000
2014-04-01	-3532940088.21907000
2014-07-01	-265382015.56390100
2014-10-01	615930191.51443800
2015-01-01	41931079926.59340000
2015-04-01	-15851615745.17900000
2015-07-01	-17383628286.81530000
2015-10-01	-11474404636.57920000
2016-01-01	-3518115528.78863000
2016-04-01	5791335675.29142000
2016-07-01	-89248254.13247270
2016-10-01	86819954.46139069
2017-01-01	1096948677.32863000
2017-04-01	166373791.52869500
2017-07-01	-186887791.19177000
2017-10-01	703005349.98889600
2018-01-01	399958481.29027700
2018-04-01	-309433663.60417700
2018-07-01	1100241183.68682000