Quarter	US Dollars, sum over component sub-periods
2002-01-01	-2188943452.9886900
2002-04-01	-2328464041.6591700
2002-07-01	-1091893990.8173099
2002-10-01	-4172947806.4139004
2003-01-01	-3989213640.7748800
2003-04-01	-3140740116.0115400
2003-07-01	-308430024.0695250
2003-10-01	-5410485600.5102005
2004-01-01	-2991608548.5261300
2004-04-01	-4526904783.8164000
2004-07-01	1166434112.6546998
2004-10-01	-6239952886.5079900
2005-01-01	-5382054569.8942900
2005-04-01	-4290263842.1384900
2005-07-01	-378045277.3798400
2005-10-01	-6320255804.8756000
2006-01-01	-9285166943.7136210
2006-04-01	-7120253782.0582700
2006-07-01	-475405259.8183050
2006-10-01	-8225717826.4596610
2007-01-01	-9985454183.2731000
2007-04-01	-10485356119.5443000
2007-07-01	-5674111274.7673690
2007-10-01	-13247408110.3021000
2008-01-01	-12835143190.3929000
2008-04-01	-13277493782.5292000
2008-07-01	-6923235582.0378895
2008-10-01	-12005527580.3226000
2009-01-01	-8989017877.7359200
2009-04-01	-9801039249.6807900
2009-07-01	-5056547910.7144200
2009-10-01	-12254986656.3561000
2010-01-01	-13008806697.4390010
2010-04-01	-5931564457.0840800
2010-07-01	-2955590366.1640900
2010-10-01	-7677004238.2732200
2011-01-01	-9004547086.2693400
2011-04-01	-8579650456.4005100
2011-07-01	-3222102257.7784700
2011-10-01	-4288543923.7564197
2012-01-01	-6220021819.0007000
2012-04-01	-1962000223.0179300
2012-07-01	4688800576.4443800
2012-10-01	-1495069726.5106301
2013-01-01	-1294424297.1334500
2013-04-01	-656922958.6819980
2013-07-01	6939612639.4470900
2013-10-01	-1625169751.6778800
2014-01-01	1559620366.9049802
2014-04-01	-884461245.5947350
2014-07-01	5080869845.0766300
2014-10-01	-3577361951.9394100
2015-01-01	-2591429452.4216003
2015-04-01	-525372675.2438670
2015-07-01	5055999892.0874400
2015-10-01	1147892910.0404701
2016-01-01	-1611319866.6608000
2016-04-01	-461849923.2413240
2016-07-01	3208132398.8572397
2016-10-01	-1877021029.4345700
2017-01-01	-2870610825.0055200
2017-04-01	-818234050.8689419
2017-07-01	5225308675.6232395
2017-10-01	-2118354091.1016798
2018-01-01	-2809214233.8261800
2018-04-01	-1235282063.4000700