Quarter	US Dollars, sum over component sub-periods
1995-01-01	-4486489433.0000000
1995-04-01	1697052719.0000000
1995-07-01	13091684720.0000000
1995-10-01	5985373682.0000000
1996-01-01	4694554686.0000000
1996-04-01	8739305408.0000000
1996-07-01	-109492879.3000000
1996-10-01	4881771872.0000000
1997-01-01	609028213.7000000
1997-04-01	-981570798.0000000
1997-07-01	4215994325.9000000
1997-10-01	-10800043134.1999990
1998-01-01	18025382870.0000000
1998-04-01	3310339832.3000000
1998-07-01	-14626894426.0000000
1998-10-01	-212744608.0000000
1999-01-01	-9347233864.8000010
1999-04-01	6985663897.6900010
1999-07-01	1892613031.2000000
1999-10-01	-2351790243.0000000
2000-01-01	3033327992.8000000
2000-04-01	-9563470447.6000000
2000-07-01	6618425823.9000000
2000-10-01	4349044777.4300000
2001-01-01	2170016580.7000000
2001-04-01	2954484189.0000000
2001-07-01	6197257715.0000000
2001-10-01	-2052274700.9999998
2002-01-01	1664415156.3999999
2002-04-01	5986070992.0000000
2002-07-01	-960068407.0000000
2002-10-01	-909563973.4000000
2003-01-01	5253635795.6000000
2003-04-01	5740799555.1000000
2003-07-01	5169572919.0000000
2003-10-01	1368837806.0000000
2004-01-01	3656151615.2999997
2004-04-01	-2662657372.0000000
2004-07-01	8125407128.3000000
2004-10-01	5346020252.0000000
2005-01-01	11250734759.9870010
2005-04-01	114115499.3000000
2005-07-01	5231398316.0000000
2005-10-01	-3563830496.0000000
2006-01-01	14185845324.0000000
2006-04-01	635568485.0000000
2006-07-01	16998680095.0000000
2006-10-01	34275177851.2000000
2007-01-01	32265826910.0000000
2007-04-01	51012198531.0000000
2007-07-01	17951624032.0000000
2007-10-01	20947413506.8000000
2008-01-01	13887953750.3000000
2008-04-01	18614284938.0000000
2008-07-01	18396605344.0000000
2008-10-01	-19786691549.0000000
2009-01-01	-1603951806.6999998
2009-04-01	24605334700.0000000
2009-07-01	28195519920.0000000
2009-10-01	15358611027.0000000
2010-01-01	16449516051.7799990
2010-04-01	25467068804.0100000
2010-07-01	34510329650.1899950
2010-10-01	44626372431.8699950
2011-01-01	22973853591.7000000
2011-04-01	33395797109.1200030
2011-07-01	26641704371.9600000
2011-10-01	10624225421.2700000
2012-01-01	19753885692.9299960
2012-04-01	11653760320.4600000
2012-07-01	11954574449.3900000
2012-10-01	11963432314.2100010
2013-01-01	13722996262.2100000
2013-04-01	21247707223.0700000
2013-07-01	13924797452.7100000
2013-10-01	7296236598.6000000
2014-01-01	22136816612.8000030
2014-04-01	32162326680.9800000
2014-07-01	31626375328.8000000
2014-10-01	5981331442.0000000
2015-01-01	16948531577.9999980
2015-04-01	20704486738.3999980
2015-07-01	7471923414.3000000
2015-10-01	13797125719.1000000
2016-01-01	8406896460.2199990
2016-04-01	24027841279.0000000
2016-07-01	9169262863.1900000
2016-10-01	12072261017.9000000
2017-01-01	14018196989.5900000
2017-04-01	16536870241.6000020
2017-07-01	26958055040.5000000
2017-10-01	11223429195.6000000
2018-01-01	28215932394.0000000
2018-04-01	4171786185.4000000
2018-07-01	19682933262.8000000