Quarter	Billions of US Dollars
1976-01-01	0.01700
1976-04-01	0.02030
1978-04-01	0.03000
1980-04-01	0.02500
1981-01-01	-0.01832
1983-04-01	-0.02179
1985-04-01	-0.03000
1985-10-01	-0.00800
1986-10-01	-0.00800
1987-04-01	-0.00900
1996-04-01	0.21990
1996-07-01	0.32500
1996-10-01	-0.13500
1997-04-01	0.23254
1997-10-01	-0.00404
1998-04-01	0.55207
1998-10-01	-0.00404
1999-01-01	0.43907
1999-04-01	-0.00404
1999-10-01	-0.00404
2000-01-01	0.38468
2000-04-01	-0.00404
2000-10-01	-0.00404
2001-01-01	0.09219
2001-04-01	0.39376
2001-07-01	-0.32500
2001-10-01	-0.00404
2002-04-01	-0.00404
2002-10-01	0.02619
2003-04-01	-0.00404
2003-10-01	-0.00404
2004-04-01	-0.25030
2004-10-01	0.06236
2005-04-01	-0.63351
2005-10-01	-0.00404
2006-04-01	-0.00404
2006-10-01	-0.00808
2007-01-01	1.46988
2007-10-01	0.14159
2008-01-01	1.47134
2009-01-01	-0.52072
2009-07-01	2.60466
2009-10-01	0.33419
2010-01-01	-0.69212
2010-04-01	1.25497
2010-10-01	0.06979
2011-01-01	0.48604
2011-04-01	-0.64766
2012-07-01	-2.50175
2012-10-01	2.25000
2013-01-01	0.26151
2013-04-01	3.50000
2013-07-01	-0.11681
2014-01-01	3.50000
2014-04-01	3.24511
2014-07-01	0.81669
2014-10-01	-0.06245
2015-04-01	-1.43620