Quarter	Billions of US Dollars
1971-10-01	0.02000
1972-04-01	0.02000
1974-07-01	0.00900
1976-10-01	0.01390
1977-04-01	0.00200
1977-07-01	0.02500
1978-01-01	0.09110
1978-07-01	0.07000
1978-10-01	0.04200
1979-01-01	0.08070
1980-07-01	0.02500
1983-01-01	0.02080
1996-07-01	3.22201
1997-01-01	0.50000
1997-07-01	0.81500
1998-04-01	0.30000
1999-01-01	0.50000
2000-07-01	0.35000
2001-01-01	1.03066
2001-10-01	0.45000
2002-01-01	0.18000
2002-04-01	0.17000
2002-07-01	0.25000
2002-10-01	0.43000
2003-01-01	0.27500
2004-01-01	0.57600
2004-10-01	0.60000
2005-04-01	0.15000
2005-07-01	0.25000
2005-10-01	1.13000
2006-01-01	1.36329
2006-07-01	0.31300
2007-01-01	0.45000
2007-10-01	0.32000
2008-04-01	0.74760
2009-01-01	0.32300
2009-10-01	1.00000
2011-01-01	0.50082
2011-07-01	0.71500
2012-07-01	0.80000
2012-10-01	0.70000
2013-04-01	0.75000
2013-07-01	0.10000
2013-10-01	0.50000
2014-04-01	0.36877
2014-07-01	1.25000
2014-10-01	0.40000
2015-01-01	1.37500
2015-04-01	0.15000