Quarter	US Dollars, sum over component sub-periods
2002-01-01	6136405.3547940800
2002-04-01	-47819956.6217521950
2002-07-01	-5902129.6800935800
2002-10-01	9004202.8908475410
2003-01-01	-18249900.9400358000
2003-04-01	-26125505.4858103020
2003-07-01	-4502628.0886062100
2003-10-01	3569706.7960260804
2004-01-01	-468806187.0862090000
2004-04-01	-15668200.7959567010
2004-07-01	-78251345.0837532000
2004-10-01	-5181609.2061515400
2005-01-01	1449367507.7436302000
2005-04-01	46564905.2974843000
2005-07-01	-26829019.6850208980
2005-10-01	-90391313.7317550000
2006-01-01	-4811590.5913790000
2006-04-01	-93009493.3578663000
2006-07-01	-10196359.4599100000
2006-10-01	-61915392.1389468000
2007-01-01	0.0000000000
2007-04-01	-4044236.0965071700
2007-07-01	0.0000000000
2007-10-01	-18837924.4622542000
2008-01-01	-40451601.0436101900
2008-04-01	-7810290.4603112900
2008-07-01	-46484795.9807612000
2008-10-01	-55161597.0215022040
2009-01-01	-19515887.7067649000
2009-04-01	-5447291.5101741200
2009-07-01	-8582542.4227118900
2009-10-01	-172771832.6055739800
2010-01-01	-9686378.7769464200
2010-04-01	-29225788.8845188000
2010-07-01	-7754063.0507147100
2010-10-01	-80081904.1828358900
2011-01-01	-5468901.9655446900
2011-04-01	-30225240.6617029000
2011-07-01	-36711068.6688169000
2011-10-01	37725174.3214513960
2012-01-01	-40653737.3790895000
2012-04-01	-76941185.2163894000
2012-07-01	-30032349.5688991000
2012-10-01	-211541983.8725980000
2013-01-01	-166256331.7419110000
2013-04-01	-32650246.4553677000
2013-07-01	-86099412.4000880000
2013-10-01	-202805940.5360170000
2014-01-01	-269987005.5187000000
2014-04-01	-95988042.1575682000
2014-07-01	-94041125.9125237000
2014-10-01	-208523366.8320700000
2015-01-01	-2251459.1246060804
2015-04-01	-118347107.8970400100
2015-07-01	-81153912.0761617000
2015-10-01	35016752.2605290040
2016-01-01	-40778956.9537960000
2016-04-01	-13550608.9948554990
2016-07-01	-5579360.6936647710
2016-10-01	-20472674.8330980000
2017-01-01	-98031253.1182286000
2017-04-01	-7698438.6506486500
2017-07-01	-10570415.3923599000
2017-10-01	41213114.6128731000
2018-01-01	20890919.4991448000
2018-04-01	-3573622.1699134097