Quarter	US Dollars, sum over component sub-periods
1996-01-01	-37294166439.0315000
1996-04-01	11439598272.1425000
1996-07-01	-28233031402.4806000
1996-10-01	47184568332.6294000
1997-01-01	18560651218.4946020
1997-04-01	26664062175.0389000
1997-07-01	24078575289.8082000
1997-10-01	122662558802.3799900
1998-01-01	-73634266941.2425100
1998-04-01	-11935014533.0497000
1998-07-01	-20997085833.9307020
1998-10-01	68612537627.7281000
1999-01-01	-119226745013.9910100
1999-04-01	-131134067751.5440000
1999-07-01	-53262971770.2842000
1999-10-01	37223439601.9424060
2000-01-01	-12381925500.5625000
2000-04-01	-24174451542.7595000
2000-07-01	-32194016024.4157030
2000-10-01	72959066924.8296000
2001-01-01	2026583910.2260500
2001-04-01	-6297423702.9062600
2001-07-01	-80044652838.3268000
2001-10-01	37739619085.6410100
2002-01-01	-43680732869.5958000
2002-04-01	-2519222666.3313000
2002-07-01	-19130840068.3934020
2002-10-01	29056918581.1100000
2003-01-01	-46739684211.3557000
2003-04-01	-35430433296.2140050
2003-07-01	-58860628177.6802000
2003-10-01	-8854200036.6266400
2004-01-01	-79903187015.4542000
2004-04-01	82264068098.1133100
2004-07-01	-13773149752.1112000
2004-10-01	59437246207.1649000
2005-01-01	-39907902333.1068040
2005-04-01	73648138628.3654000
2005-07-01	-2224070532.8279600
2005-10-01	75128112818.5716000
2006-01-01	1610142089.5234200
2006-04-01	50824238057.8640000
2006-07-01	-43662752678.9092000
2006-10-01	77411375100.8666100
2007-01-01	82735699893.5661000
2007-04-01	39587247778.1849000
2007-07-01	69583779099.7291000
2007-10-01	68890330093.9444000
2008-01-01	49773465121.7145000
2008-04-01	-40784591486.5148000
2008-07-01	41726922078.5087050
2008-10-01	-186015909664.4390000
2009-01-01	-127084019360.9040000
2009-04-01	-8677220160.3807410
2009-07-01	-32358380406.1176030
2009-10-01	-34724564155.7025000
2010-01-01	39756018782.5523000
2010-04-01	65023555812.4729000
2010-07-01	66779781774.7918000
2010-10-01	-41412821866.5783000
2011-01-01	90055335381.6128000
2011-04-01	1146041370.8234801
2011-07-01	55210561090.5698000
2011-10-01	-53653681750.2772100
2012-01-01	32802539653.7188000
2012-04-01	37991295163.8026000
2012-07-01	26627495412.5636000
2012-10-01	23692130613.2851000
2013-01-01	58222825142.3100000
2013-04-01	49393716405.9008000
2013-07-01	15840189462.2463000
2013-10-01	61604190695.8414000
2014-01-01	16465099414.6865000
2014-04-01	30963837946.3500000
2014-07-01	31076992081.8033000
2014-10-01	29022938561.8816030
2015-01-01	17360108831.7831000
2015-04-01	-40954888953.4749100
2015-07-01	-3181570630.4177403
2015-10-01	-15556500792.8042000
2016-01-01	15187383773.6163000
2016-04-01	83335846123.1954000
2016-07-01	998723929.5549450
2016-10-01	36281818418.8934000
2017-01-01	-20495203062.1199000
2017-04-01	22574634975.4661000
2017-07-01	57658017152.8817000
2017-10-01	-55278273210.8376000
2018-01-01	120892083929.5220000
2018-04-01	29048552478.9926000
2018-07-01	29366460795.5254000