Quarter	US Dollars, sum over component sub-periods
1994-01-01	3975430000.0000000
1994-04-01	-2593700000.0000000
1994-07-01	6345850000.0000000
1994-10-01	4685020000.0000000
1995-01-01	345130000.0000000
1995-04-01	-3221450000.0000000
1995-07-01	-4211720000.0000005
1995-10-01	-6364560000.0000000
1996-01-01	-228990000.0000000
1996-04-01	3091920000.0000000
1996-07-01	1627940000.0000000
1996-10-01	7344700000.0000000
1997-01-01	4211939999.9999995
1997-04-01	-573230000.0000000
1997-07-01	984940000.0000000
1997-10-01	31137970000.0000000
1998-01-01	42920000.0000000
1998-04-01	-1899320000.0000000
1998-07-01	242350000.0000000
1998-10-01	9529380000.0000000
1999-01-01	4844510000.0000000
1999-04-01	1278070000.0000000
1999-07-01	4098890000.0000005
1999-10-01	5235960000.0000000
2000-01-01	7196830000.0000000
2000-04-01	3711390000.0000000
2000-07-01	2334210000.0000000
2000-10-01	6138310000.0000000
2001-01-01	7099910000.0000000
2001-04-01	2032790000.0000000
2001-07-01	-8387340000.0000000
2001-10-01	5714640000.0000000
2002-01-01	5599600000.0000000
2002-04-01	-773690000.0000000
2002-07-01	-2708010000.0000000
2002-10-01	95530000.0000000
2003-01-01	-84260000.0000000
2003-04-01	-4137430000.0000005
2003-07-01	3624400000.0000000
2003-10-01	-6121770000.0000000
2004-01-01	5642700000.0000000
2004-04-01	6719360000.0000000
2004-07-01	6858610000.0000000
2004-10-01	-10262200000.0000000
2005-01-01	1678420000.0000000
2005-04-01	6930520000.0000000
2005-07-01	693990000.0000000
2005-10-01	-17813820000.0000000
2006-01-01	5244940000.0000000
2006-04-01	-5668800000.0000000
2006-07-01	31572160000.0000000
2006-10-01	-10772050000.0000000
2007-01-01	-4449680000.0000000
2007-04-01	-53295620000.0000000
2007-07-01	932710000.0000000
2007-10-01	-24034530000.0000000
2008-01-01	21152340000.0000000
2008-04-01	-26183560000.0000000
2008-07-01	14775530000.0000000
2008-10-01	111932200000.0000000
2009-01-01	15616770000.0000000
2009-04-01	-6455580000.0000000
2009-07-01	19076520000.0000000
2009-10-01	-11919480000.0000000
2010-01-01	7735220000.0000000
2010-04-01	-7388930000.0000000
2010-07-01	4931980000.0000000
2010-10-01	3463690000.0000000
2011-01-01	23575460000.0000000
2011-04-01	-2102699999.9999998
2011-07-01	6238310000.0000000
2011-10-01	19971460000.0000000
2012-01-01	33043110000.0000000
2012-04-01	-9893530000.0000000
2012-07-01	9273000000.0000000
2012-10-01	10694070000.0000000
2013-01-01	-13457490000.0000000
2013-04-01	17226470000.0000000
2013-07-01	9320380000.0000000
2013-10-01	4477900000.0000000
2014-01-01	26970950000.0000000
2014-04-01	23230060000.0000000
2014-07-01	-18500560000.0000000
2014-10-01	19042080000.0000000
2015-01-01	19860600000.0000000
2015-04-01	14855800000.0000000
2015-07-01	-14958900000.0000000
2015-10-01	89290000.0000000
2016-01-01	-2320460000.0000000
2016-04-01	-1552650000.0000000
2016-07-01	4636880000.0000000
2016-10-01	21901660000.0000000
2017-01-01	5618840000.0000000
2017-04-01	1762370000.0000000
2017-07-01	-1926580000.0000000
2017-10-01	8472740000.0000000
2018-01-01	12841610000.0000000
2018-04-01	-604430000.0000000