Quarter	US Dollars, sum over component sub-periods
2008-01-01	431424265629.566000
2008-04-01	-331837997668.574950
2008-07-01	93093901303.032300
2008-10-01	-525391884316.727970
2009-01-01	-308396692944.118960
2009-04-01	-81550720287.378000
2009-07-01	-115430189102.395000
2009-10-01	-127359125575.781000
2010-01-01	179245747383.195000
2010-04-01	94625861495.174400
2010-07-01	109058441355.003000
2010-10-01	-38748918793.254500
2011-01-01	125282836729.640000
2011-04-01	114455358110.845000
2011-07-01	275686006061.020000
2011-10-01	-137170485358.748000
2012-01-01	46279296644.737300
2012-04-01	-80066664395.187800
2012-07-01	-85662146618.900010
2012-10-01	-130088067433.350000
2013-01-01	35784300316.992900
2013-04-01	97435518477.037400
2013-07-01	-84846997101.252900
2013-10-01	-12775004805.965700
2014-01-01	219630591610.703000
2014-04-01	66124790984.603610
2014-07-01	53945698487.544100
2014-10-01	-55262313274.952600
2015-01-01	86662939478.425000
2015-04-01	-143024913198.594000
2015-07-01	-39409896080.580100
2015-10-01	-170157232541.641000
2016-01-01	37510578660.647800
2016-04-01	286953455083.882000
2016-07-01	48893499979.578600
2016-10-01	-46214369662.714400
2017-01-01	125193156020.252000
2017-04-01	-20075108491.601498
2017-07-01	121114292727.881000
2017-10-01	83008511659.348110
2018-01-01	216639203869.417000
2018-04-01	20057669153.072998