Quarter	Billions of US Dollars
1993-10-01	0.10000
1994-10-01	-0.05059
1995-07-01	0.04686
1995-10-01	0.15000
1996-01-01	0.05000
1996-04-01	-0.02647
1996-07-01	0.15000
1997-07-01	0.25000
1997-10-01	0.04000
1998-01-01	0.43000
1999-07-01	0.12560
2000-01-01	0.58932
2000-07-01	-0.56401
2001-04-01	-0.01484
2001-07-01	-0.15598
2002-01-01	-0.00479
2002-04-01	0.10000
2002-07-01	-0.10000
2002-10-01	-0.58802
2003-01-01	-0.07000
2004-04-01	-0.10000
2004-07-01	-0.19000
2005-01-01	0.12507
2005-07-01	0.50000
2006-01-01	0.72500
2006-07-01	-0.10000
2006-10-01	0.10000
2007-01-01	0.12387
2007-10-01	0.19130
2008-10-01	1.00000
2009-01-01	-0.19130
2009-07-01	-0.10000
2010-01-01	-0.86840
2010-07-01	-0.50000
2010-10-01	1.50000
2011-01-01	0.70000
2011-04-01	0.45000
2011-07-01	0.20000
2011-10-01	0.02500
2012-01-01	1.68624
2012-04-01	0.09977
2012-10-01	0.30000
2013-01-01	1.00000
2013-04-01	2.91293
2013-07-01	0.01024
2013-10-01	1.01785
2014-01-01	1.24103
2014-04-01	2.33199
2014-07-01	2.19320
2014-10-01	0.29286
2015-01-01	0.20000
2015-04-01	0.12479