Quarter	Billions of US Dollars
1993-07-01	0.08100
1993-10-01	0.06200
1994-01-01	0.09750
1994-04-01	0.07300
1994-07-01	0.02000
1994-10-01	0.00400
1995-01-01	0.01150
1995-04-01	0.01000
1995-07-01	0.00500
1995-10-01	0.01000
1996-04-01	0.01000
1996-10-01	0.00600
1997-10-01	0.00800
1998-04-01	0.01000
2005-04-01	0.02500
2006-07-01	0.01543
2007-01-01	0.03996
2007-10-01	0.03900
2009-04-01	0.05000
2009-07-01	0.06500
2009-10-01	0.05000
2010-01-01	0.06500
2010-04-01	0.05800
2010-07-01	0.12580
2010-10-01	0.00614
2012-01-01	1.41146
2012-04-01	0.47110
2012-07-01	0.51688
2012-10-01	0.43012
2013-01-01	0.38328
2013-04-01	0.24501
2013-07-01	0.16150
2013-10-01	0.45578
2014-01-01	0.24105
2014-04-01	0.12442
2014-07-01	0.22002
2014-10-01	0.10300
2015-01-01	0.01000
2015-04-01	0.12814