Quarter	Billions of US Dollars
1993-07-01	0.07121
1993-10-01	0.06200
1994-01-01	0.06400
1994-04-01	0.05800
1994-07-01	0.02800
1994-10-01	0.04150
1995-01-01	0.01650
1995-04-01	0.01250
1995-07-01	0.01250
1995-10-01	0.01250
1996-01-01	0.01250
1996-04-01	0.01250
1996-07-01	0.00750
1996-10-01	0.00250
1997-01-01	0.02250
1997-04-01	0.01250
1997-07-01	0.02750
1997-10-01	0.01750
1998-01-01	0.00750
1998-04-01	0.01750
1998-07-01	0.00250
1998-10-01	0.00250
1999-01-01	0.00500
1999-04-01	0.01000
2000-01-01	0.01500
2000-04-01	0.01000
2001-01-01	0.01000
2001-07-01	0.01000
2001-10-01	0.03000
2002-01-01	0.01000
2002-04-01	0.01000
2003-04-01	0.01000
2003-07-01	0.01000
2004-01-01	0.02000
2004-10-01	0.01350
2005-01-01	0.02000
2005-07-01	0.02000
2005-10-01	0.02000
2006-04-01	0.02000
2006-07-01	0.02000
2007-04-01	0.01000
2007-10-01	0.07500
2008-01-01	0.05000
2008-04-01	0.00500
2012-01-01	0.14670
2013-10-01	0.10000