Quarter	Billions of US Dollars
1996-01-01	0.00240
1996-04-01	0.00471
1996-07-01	0.00227
1996-10-01	-0.00206
1997-01-01	-0.00682
1997-04-01	0.00811
1997-07-01	0.00000
1997-10-01	0.12437
1998-01-01	-0.00116
1998-04-01	0.00001
1998-07-01	0.00005
1998-10-01	-0.00032
1999-04-01	-0.00468
1999-07-01	-0.00055
1999-10-01	-0.00468
2000-04-01	-0.00468
2000-10-01	-0.00467
2001-01-01	0.28066
2001-04-01	-0.00468
2001-10-01	-0.00468
2002-04-01	-0.00468
2002-10-01	-0.00468
2003-04-01	-0.00468
2003-07-01	0.01500
2003-10-01	-0.00468
2004-01-01	0.00800
2004-04-01	-0.00468
2004-07-01	-0.01100
2004-10-01	-0.00468
2005-01-01	-0.00800
2005-04-01	-0.00468
2005-07-01	-0.00400
2005-10-01	-0.00468
2006-01-01	-0.06058
2006-10-01	0.29065
2007-04-01	-0.00468
2007-10-01	-0.00467
2008-04-01	-0.00468
2008-10-01	-0.00468
2009-04-01	-0.00468
2010-04-01	-0.00936
2010-10-01	-0.00468
2011-04-01	-0.00467
2011-07-01	0.56500
2012-01-01	-0.00468
2012-07-01	-0.00468
2012-10-01	0.59532
2013-01-01	0.31000
2013-04-01	0.30000
2014-04-01	1.03750
2015-04-01	0.30000