Quarter	Billions of US Dollars
1987-01-01	0.05000
1987-04-01	0.05000
1990-01-01	0.01500
1990-04-01	0.00500
1990-07-01	0.32950
1990-10-01	0.58350
1991-01-01	0.58450
1991-04-01	0.60950
1991-07-01	0.61250
1991-10-01	0.58950
1992-01-01	0.58150
1992-04-01	0.60650
1992-07-01	0.75150
1992-10-01	0.96250
1993-01-01	0.95850
1993-04-01	0.95550
1993-07-01	0.97150
1993-10-01	0.96150
1994-01-01	1.12500
1994-04-01	1.12850
1994-07-01	1.35250
1994-10-01	1.55450
1995-01-01	1.56550
1995-04-01	1.57250
1995-07-01	1.75300
1995-10-01	2.02700
1996-01-01	2.00300
1996-04-01	2.00800
1996-07-01	2.27171
1996-10-01	2.82283
1997-01-01	3.36889
1997-04-01	3.71294
1997-07-01	3.39631
1997-10-01	3.03884
1998-01-01	2.46298
1998-04-01	2.39583
1998-07-01	2.36852
1998-10-01	2.17200
1999-01-01	2.01300
1999-04-01	2.01300
1999-07-01	1.94700
1999-10-01	1.86400
2000-01-01	1.83900
2000-04-01	1.73900
2000-07-01	1.73900
2000-10-01	1.63900
2001-01-01	1.63900
2001-04-01	1.63900
2001-07-01	1.47000
2001-10-01	1.59500
2002-01-01	1.44500
2002-04-01	1.44500
2002-07-01	1.40000
2002-10-01	1.55000
2003-01-01	1.55500
2003-04-01	2.07500
2003-07-01	1.97500
2003-10-01	1.79000
2004-01-01	1.77000
2004-04-01	1.77000
2004-07-01	1.77000
2004-10-01	1.77500
2005-01-01	1.77500
2005-04-01	1.92500
2005-07-01	1.79500
2005-10-01	1.35500
2006-01-01	1.41500
2006-04-01	1.40000
2006-07-01	1.41500
2006-10-01	1.24500
2007-01-01	1.23000
2007-04-01	1.23000
2007-07-01	1.10500
2007-10-01	0.95000
2008-01-01	0.95000
2008-04-01	0.65000
2008-07-01	0.65000
2008-10-01	0.50000
2009-01-01	0.50000
2009-04-01	0.60000
2009-07-01	0.60000
2009-10-01	0.60000
2010-01-01	0.60000
2010-04-01	0.60000
2010-07-01	0.60000
2010-10-01	0.60000
2011-01-01	0.60000
2011-04-01	0.60000
2011-07-01	0.60000
2011-10-01	0.60000
2012-01-01	0.60000
2012-04-01	1.10000
2012-07-01	1.10000
2012-10-01	1.10000
2013-01-01	1.47500
2013-04-01	1.74000
2013-07-01	1.74000
2013-10-01	1.74000
2014-01-01	1.74000
2014-04-01	1.74000
2014-07-01	1.74000
2014-10-01	1.74000
2015-01-01	1.74000
2015-04-01	1.59000