Quarter	US Dollars, sum over component sub-periods
1990-01-01	0.000000000
1990-04-01	0.000000000
1990-07-01	0.000000000
1990-10-01	0.000000000
1991-01-01	0.000000000
1991-04-01	0.000000000
1991-07-01	0.000000000
1991-10-01	0.000000000
1992-01-01	0.000000000
1992-04-01	0.000000000
1992-07-01	0.000000000
1992-10-01	0.000000000
1993-01-01	0.000000000
1993-04-01	0.000000000
1993-07-01	0.000000000
1993-10-01	0.000000000
1994-01-01	0.000000000
1994-04-01	0.000000000
1994-07-01	0.000000000
1994-10-01	0.000000000
1995-01-01	0.000000000
1995-04-01	0.000000000
1995-07-01	0.000000000
1995-10-01	0.000000000
1996-01-01	0.000000000
1996-04-01	0.000000000
1996-07-01	0.000000000
1996-10-01	0.000000000
1997-01-01	0.000000000
1997-04-01	0.000000000
1997-07-01	0.000000000
1997-10-01	0.000000000
1998-01-01	0.000000000
1998-04-01	0.000000000
1998-07-01	0.000000000
1998-10-01	0.000000000
1999-01-01	0.000000000
1999-04-01	0.000000000
1999-07-01	0.000000000
1999-10-01	0.000000000
2000-01-01	0.000000000
2000-04-01	0.000000000
2000-07-01	0.000000000
2000-10-01	0.000000000
2001-01-01	0.000000000
2001-04-01	0.000000000
2001-07-01	0.000000000
2001-10-01	0.000000000
2002-01-01	0.000000000
2002-04-01	0.000000000
2002-07-01	0.000000000
2002-10-01	0.000000000
2003-01-01	0.000000000
2003-04-01	0.000000000
2003-07-01	0.000000000
2003-10-01	0.000000000
2004-01-01	0.000000000
2004-04-01	0.000000000
2004-07-01	0.000000000
2004-10-01	0.000000000
2005-01-01	0.000000000
2005-04-01	0.000000000
2005-07-01	0.000000000
2005-10-01	0.000000000
2006-01-01	0.000000000
2006-04-01	0.000000000
2006-07-01	0.000000000
2006-10-01	0.000000000
2007-01-01	0.000000000
2007-04-01	0.000000000
2007-07-01	0.000000000
2007-10-01	0.000000000
2008-01-01	0.000000000
2008-04-01	0.000000000
2008-07-01	0.000000000
2008-10-01	0.000000000
2009-01-01	0.000000000
2009-04-01	-54000000.000000000
2009-07-01	65999999.997825995
2009-10-01	281000000.003762000
2010-01-01	-15000000.000000000
2010-04-01	-74907205.030316200
2010-07-01	2919574.145738100
2010-10-01	136649940.997492000
2011-01-01	-24187331.071529597
2011-04-01	-271472100.217186000
2011-07-01	244049830.921181020
2011-10-01	119525397.057100000
2012-01-01	-152988352.650554000
2012-04-01	-217897885.853070970
2012-07-01	-247960951.369702000
2012-10-01	21614367.718801500
2013-01-01	150391433.341682000
2013-04-01	766966620.138536000
2013-07-01	-65049334.664872006
2013-10-01	109520936.146486000
2014-01-01	-152831130.222720980
2014-04-01	21008005.949497200
2014-07-01	-53208305.856328300
2014-10-01	110697777.680899000
2015-01-01	6918754.378368650
2015-04-01	8052350.131609230
2015-07-01	4180996.309102170
2015-10-01	17917338.289877802
2016-01-01	10569563.819834800
2016-04-01	159198137.960125980
2016-07-01	-13874775.739013200
2016-10-01	-19057056.131307900
2017-01-01	23536729.988624502
2017-04-01	11682413.222302102
2017-07-01	-31293108.016935200
2017-10-01	33385495.782038603
2018-01-01	-42868658.942537500
2018-04-01	17428532.759265600