Quarter	US Dollars, sum over component sub-periods
1999-01-01	-60327881176.7735060
1999-04-01	-64945754286.3172000
1999-07-01	17952144765.8928000
1999-10-01	-63664873715.5067000
2000-01-01	-110719725511.7100000
2000-04-01	29307073136.2473030
2000-07-01	-57186895884.8326000
2000-10-01	-33456143705.4544000
2001-01-01	-98489151851.0466900
2001-04-01	-17798597115.4354020
2001-07-01	74047994825.6911000
2001-10-01	47481956710.5185000
2002-01-01	-55369662145.6432950
2002-04-01	81831900768.9735000
2002-07-01	48463370491.5284040
2002-10-01	84059236321.0011000
2003-01-01	43617263246.6855000
2003-04-01	101610042075.1160000
2003-07-01	-84264433364.2208000
2003-10-01	20818530034.4241000
2004-01-01	13982925873.4913000
2004-04-01	10045727202.6384000
2004-07-01	24871700963.9642000
2004-10-01	9732357491.4541300
2005-01-01	-42027726347.9620000
2005-04-01	95682070809.6524000
2005-07-01	-71292022308.4691000
2005-10-01	-58966059897.2756000
2006-01-01	-81297837529.5874000
2006-04-01	52016187602.9094000
2006-07-01	-46895606245.9911960
2006-10-01	117710189784.1580000
2007-01-01	97570578966.7565000
2007-04-01	1930448696.7327600
2007-07-01	-115046833838.1350100
2007-10-01	-51436228208.6288100
2008-01-01	-123945203805.0680000
2008-04-01	-208328563622.1590000
2008-07-01	-14618718581.1755000
2008-10-01	-67010833410.2639100
2009-01-01	1289349647.8269400
2009-04-01	144850290369.9180000
2009-07-01	20977164104.8450000
2009-10-01	97087433148.0228000
2010-01-01	-101157621104.4450000
2010-04-01	18194959610.3228000
2010-07-01	-24445976111.2199020
2010-10-01	77775816806.4522100
2011-01-01	137791719472.8810000
2011-04-01	164159039222.4059800
2011-07-01	-22979717022.4998000
2011-10-01	-76102455227.6021000
2012-01-01	-126037077162.2430000
2012-04-01	66448972259.0477100
2012-07-01	60527697860.3188000
2012-10-01	239818528318.0960000
2013-01-01	-4152449809.4586797
2013-04-01	209378194459.1240000
2013-07-01	132729529549.6310000
2013-10-01	207406504824.6860000
2014-01-01	107675477475.0640100
2014-04-01	137055840365.8109900
2014-07-01	-47032483662.3633960
2014-10-01	-63032743000.2978000
2015-01-01	-21201990576.4155000
2015-04-01	-45250625030.6886000
2015-07-01	-66468389082.6535000
2015-10-01	-52218731808.5139000
2016-01-01	-174903150642.7750000
2016-04-01	-825457931.2699460
2016-07-01	-171961475939.4420000
2016-10-01	-33833788934.6988030
2017-01-01	-64723003757.1122000
2017-04-01	25999826877.1406970
2017-07-01	-9404146227.4028600
2017-10-01	67388152462.2890000
2018-01-01	-28079853562.0859000
2018-04-01	-79797791846.7765000