Quarter	US Dollars, sum over component sub-periods
1999-01-01	-35843975677.45341000
1999-04-01	-39571354219.42589600
1999-07-01	-54113807976.47080000
1999-10-01	-52364694634.39860000
2000-01-01	-56121168739.00430000
2000-04-01	-72271012531.09490000
2000-07-01	-88925635068.37170000
2000-10-01	-93679277553.25460000
2001-01-01	-63688877666.43590500
2001-04-01	-91120848959.44940000
2001-07-01	-88670666778.36870000
2001-10-01	-60615121158.44310000
2002-01-01	-47740896683.24600000
2002-04-01	-95096545209.18370000
2002-07-01	-80898003423.61230000
2002-10-01	-91690604124.23741000
2003-01-01	-85444998993.45770000
2003-04-01	-115299483844.66200000
2003-07-01	-93572913200.16939000
2003-10-01	-71410106122.62160000
2004-01-01	-48340937694.24360000
2004-04-01	-92583552575.39010000
2004-07-01	-105236887735.35599000
2004-10-01	-106586125803.35500000
2005-01-01	-86914937754.76230000
2005-04-01	-120089181601.31499000
2005-07-01	-136740558201.01602000
2005-10-01	-145930770050.19600000
2006-01-01	-119446440386.00200000
2006-04-01	-159898222936.79000000
2006-07-01	-166800557412.37700000
2006-10-01	-106610947855.84300000
2007-01-01	-94630963101.44510000
2007-04-01	-119526013128.22499000
2007-07-01	-102884328483.36800000
2007-10-01	-87903908709.09350000
2008-01-01	-85684589279.29400000
2008-04-01	-144903672959.55103000
2008-07-01	-160016598932.58200000
2008-10-01	-152562720981.21500000
2009-01-01	-72842046282.65380000
2009-04-01	-77096646125.09650000
2009-07-01	-43223898688.04990000
2009-10-01	-22619905190.06739800
2010-01-01	-43156872100.40770000
2010-04-01	-88441910476.59550000
2010-07-01	-82350462994.52000000
2010-10-01	-39557379076.76649500
2011-01-01	-58676163764.13870000
2011-04-01	-97303742386.67580000
2011-07-01	-73809380377.00780000
2011-10-01	-55172545188.45280500
2012-01-01	-71762255653.04180000
2012-04-01	-106971110043.90599000
2012-07-01	-85242825799.39940000
2012-10-01	-60816415951.23910000
2013-01-01	-71551934364.70660000
2013-04-01	-56159805829.82440000
2013-07-01	-86324571928.75160000
2013-10-01	-39658476520.27019500
2014-01-01	-68646877682.74580400
2014-04-01	-72886638692.66990000
2014-07-01	-57733133168.37920000
2014-10-01	-30151660827.39520000
2015-01-01	-46185648506.54330400
2015-04-01	-36591735288.97040000
2015-07-01	-42843076606.12510000
2015-10-01	-24851736701.67610000
2016-01-01	-34696597146.69729600
2016-04-01	-27893747431.70610000
2016-07-01	-44246702181.33160400
2016-10-01	4469426669.64512900
2017-01-01	-7251891304.82188000
2017-04-01	-61960715840.69730000
2017-07-01	-219950960.57150498
2017-10-01	3533045814.34324030
2018-01-01	-9913466369.20333900