Quarter	Billions of US Dollars
1987-01-01	0.12500
1988-04-01	0.10000
1991-10-01	0.00600
1992-01-01	0.13700
1992-04-01	0.20600
1992-07-01	0.26000
1992-10-01	0.29700
1993-01-01	0.32300
1993-04-01	0.74100
1993-07-01	0.89750
1993-10-01	1.04700
1994-01-01	1.42150
1994-04-01	1.43850
1994-07-01	1.58580
1994-10-01	1.64055
1995-01-01	1.02665
1995-04-01	1.04233
1995-07-01	1.16271
1995-10-01	1.37911
1996-01-01	1.55153
1996-04-01	1.67011
1996-07-01	1.01106
1996-10-01	0.80469
1997-01-01	0.81936
1997-04-01	0.65750
1997-07-01	1.26204
1997-10-01	1.23434
1998-01-01	1.38781
1998-04-01	1.60699
1998-07-01	0.84114
1998-10-01	0.90773
1999-01-01	0.78178
1999-04-01	0.96146
1999-07-01	0.81740
1999-10-01	1.25374
2000-01-01	1.39024
2000-04-01	1.22278
2000-07-01	1.41693
2000-10-01	1.19753
2001-01-01	1.19332
2001-04-01	0.84523
2001-07-01	0.46464
2001-10-01	0.41804
2002-01-01	0.14850
2002-04-01	0.06850
2002-07-01	0.06850
2002-10-01	0.05000
2003-01-01	0.05000
2003-04-01	0.05000
2003-07-01	0.05000
2003-10-01	0.05000
2004-01-01	0.05000
2004-04-01	0.05000
2004-07-01	0.05000
2004-10-01	0.05000
2005-01-01	0.05000
2005-04-01	0.05000
2005-07-01	0.05000
2005-10-01	0.05000
2006-01-01	0.05000
2006-04-01	0.05000
2006-07-01	0.05000
2006-10-01	0.05000
2007-01-01	0.05000
2007-04-01	0.05000
2007-07-01	0.05000
2007-10-01	0.05000
2008-01-01	0.05000
2008-04-01	0.11500
2008-07-01	0.11500
2008-10-01	0.11500
2009-01-01	0.11500
2009-04-01	0.05000
2009-07-01	0.05000
2009-10-01	0.05000
2010-01-01	0.05000
2010-04-01	0.05000
2010-07-01	0.05000
2010-10-01	0.05000
2011-01-01	0.05000
2011-04-01	0.05000
2011-07-01	0.05000
2011-10-01	0.13500
2012-01-01	0.13500
2012-04-01	0.13500
2012-07-01	0.13500
2012-10-01	0.05000
2013-01-01	0.05000
2013-04-01	0.05000
2013-07-01	0.05000
2013-10-01	0.05000
2014-01-01	0.05000
2014-04-01	0.05000
2014-07-01	0.05000
2014-10-01	0.05000
2015-01-01	0.05000
2015-04-01	0.05000