Quarter	Billions of US Dollars
1993-10-01	0.06500
1994-01-01	-0.00095
1994-04-01	-0.00300
1994-07-01	-0.00765
1994-10-01	0.00650
1995-01-01	0.01561
1995-04-01	0.03166
1995-07-01	0.00480
1995-10-01	-0.00300
1996-07-01	0.37500
1996-10-01	-0.06537
1997-04-01	0.16500
1997-10-01	0.00000
1999-10-01	-0.04360
2001-07-01	-0.12500
2005-07-01	-0.16500
2006-04-01	-0.25000
2011-04-01	0.30000
2012-01-01	0.75000
2012-04-01	0.04000
2013-07-01	0.01000
2014-07-01	0.80981
2014-10-01	0.02000
2015-04-01	0.01500