Quarter	US Dollars, sum over component sub-periods
2000-01-01	89380353133.95670000
2000-04-01	-22992390081.54110000
2000-07-01	54507730916.66380000
2000-10-01	52518427724.42060000
2001-01-01	40324095056.53550000
2001-04-01	-4407204531.35009000
2001-07-01	-32538536381.88760000
2001-10-01	35669116235.29560000
2002-01-01	36539623096.01400000
2002-04-01	15675751985.03190000
2002-07-01	-13150993184.73110000
2002-10-01	50159181133.95040000
2003-01-01	11067123304.25870000
2003-04-01	22289253369.65519700
2003-07-01	-4239369745.11944000
2003-10-01	26176563263.76130300
2004-01-01	73901937152.44020000
2004-04-01	18111655646.32209800
2004-07-01	-21273497365.60430000
2004-10-01	35269439858.94560000
2005-01-01	24347100732.24310000
2005-04-01	74128960826.89690000
2005-07-01	79625870881.73400000
2005-10-01	-8981815779.97808800
2006-01-01	110823004633.80699000
2006-04-01	35465581902.20600000
2006-07-01	43570679965.69190000
2006-10-01	-6346960379.33977000
2007-01-01	249825546985.88400000
2007-04-01	6162905642.46863000
2007-07-01	687336190.80480700
2007-10-01	115551085957.36200000
2008-01-01	-29837507101.18840000
2008-04-01	-125261231156.82100000
2008-07-01	27506595874.41590000
2008-10-01	-118862228127.06400000
2009-01-01	-4402334517.88367900
2009-04-01	69516738268.89761000
2009-07-01	-52339801118.40120000
2009-10-01	-6497147320.18252000
2010-01-01	19067790169.48530000
2010-04-01	70197483364.65360000
2010-07-01	17366747151.83660000
2010-10-01	52523731390.58920000
2011-01-01	-2678270076.81432000
2011-04-01	51686010093.69430000
2011-07-01	91350007954.39941000
2011-10-01	-34714333665.63390000
2012-01-01	31489429969.01110000
2012-04-01	92023077369.85940000
2012-07-01	87549461124.23380000
2012-10-01	533639832.29050493
2013-01-01	37775082662.81020000
2013-04-01	15009227564.88800000
2013-07-01	54675234618.27190000
2013-10-01	17541307920.74009700
2014-01-01	5520872253.63906000
2014-04-01	12786847014.81580000
2014-07-01	1750398875.64349000
2014-10-01	5479239550.65859000
2015-01-01	75900151967.31880000
2015-04-01	39767042975.57210000
2015-07-01	33805549112.42780000
2015-10-01	69325138051.14560000
2016-01-01	-11783752723.46290000
2016-04-01	50031096301.65480000
2016-07-01	71534106854.82680000
2016-10-01	48426258157.10440000
2017-01-01	24087828906.92870000
2017-04-01	58338317230.87700000
2017-07-01	-38817313541.58500000
2017-10-01	3370370280.42095000
2018-01-01	-1835381957.30316020
2018-04-01	-51102563375.20240000