Quarter	US Dollars, sum over component sub-periods
1999-01-01	-13875277970.1194000
1999-04-01	-6675491064.2498200
1999-07-01	-4492493029.7964000
1999-10-01	-19816328945.5693000
2000-01-01	-17358082301.4845000
2000-04-01	-1408293489.5628400
2000-07-01	-25266989174.4875000
2000-10-01	-7791478344.6275100
2001-01-01	-23529409537.6443980
2001-04-01	13362273410.0466000
2001-07-01	15736513768.0630000
2001-10-01	2369037321.0216600
2002-01-01	-31690150510.8294000
2002-04-01	17319100828.0281000
2002-07-01	2961885411.1269603
2002-10-01	15667313030.0747000
2003-01-01	-17517757855.2649000
2003-04-01	-1853774997.9496700
2003-07-01	2423539568.6922900
2003-10-01	-20285453819.5509000
2004-01-01	-27779579421.9804000
2004-04-01	-27403683192.1282000
2004-07-01	-2540723360.6881100
2004-10-01	-22117698896.4578000
2005-01-01	-32629115348.3803000
2005-04-01	12184903056.4931000
2005-07-01	8123095460.0874605
2005-10-01	-36387261214.5962000
2006-01-01	-69871512772.7101100
2006-04-01	-69407705975.7849900
2006-07-01	-81657544734.6894000
2006-10-01	-2244432965.0368200
2007-01-01	-30619786895.5042000
2007-04-01	-19149457916.9614000
2007-07-01	-88914574812.3287000
2007-10-01	-70446592133.2682000
2008-01-01	-75187540680.5028000
2008-04-01	-72518546923.9903100
2008-07-01	24233573801.4543000
2008-10-01	12151311801.0223000
2009-01-01	71515319971.8498100
2009-04-01	90990195563.0710000
2009-07-01	-35920800886.5235060
2009-10-01	80880844576.6880000
2010-01-01	30080357407.6088000
2010-04-01	119764741475.8120000
2010-07-01	-53577990992.7551000
2010-10-01	17012654017.4180010
2011-01-01	28550402711.1261000
2011-04-01	67246842580.7658100
2011-07-01	62050177835.3780060
2011-10-01	105188564629.4410000
2012-01-01	33265248463.1608000
2012-04-01	35278815774.8014000
2012-07-01	-64275484816.9376000
2012-10-01	-5567577366.9536600
2013-01-01	2741909979.0451703
2013-04-01	31468307533.6834000
2013-07-01	-894109282.6162980
2013-10-01	65911930674.2055050
2014-01-01	8799931789.0130400
2014-04-01	-27227693786.8668000
2014-07-01	22869212394.4455030
2014-10-01	-7501846634.2938800
2015-01-01	-35458229753.4211960
2015-04-01	-21788034378.1662030
2015-07-01	-36013438105.5788960
2015-10-01	18283121774.0286980
2016-01-01	-39761687297.8946000
2016-04-01	12635942887.7027000
2016-07-01	-6071460306.8460000
2016-10-01	-17073133301.6020000
2017-01-01	-23187588033.7584000
2017-04-01	-49277705802.8019940
2017-07-01	-17091187198.8468020
2017-10-01	30916901065.0170000
2018-01-01	-74251243410.4312000
2018-04-01	-14502949972.8986000