Quarter	Billions of US Dollars
1972-01-01	0.02000
1972-04-01	0.02000
1974-07-01	0.00900
1976-10-01	0.01390
1977-04-01	0.00200
1977-07-01	0.02500
1978-01-01	0.09110
1978-07-01	0.07000
1978-10-01	0.04200
1979-01-01	0.08070
1980-04-01	-0.02000
1980-07-01	0.02500
1982-01-01	-0.01408
1982-07-01	-0.02500
1983-01-01	-0.00920
1984-01-01	-0.02000
1985-10-01	-0.05561
1986-01-01	-0.02017
1986-10-01	-0.01250
1987-01-01	-0.00250
1987-07-01	-0.02650
1988-01-01	-0.09176
1990-07-01	-0.02450
1990-10-01	-0.01815
1993-01-01	-0.04132
1994-01-01	-0.11150
1996-07-01	3.22201
1997-01-01	0.50000
1997-07-01	0.81500
1998-04-01	0.30000
1998-10-01	-0.61330
1999-01-01	0.50000
2000-04-01	-0.02581
2000-07-01	0.35000
2001-01-01	1.03066
2001-04-01	-0.14527
2001-07-01	-0.04285
2001-10-01	-0.35408
2002-01-01	-0.34703
2002-07-01	0.09634
2002-10-01	0.02883
2003-01-01	0.16800
2003-04-01	-0.00200
2003-07-01	-0.04684
2004-01-01	0.17870
2004-04-01	-0.02445
2004-07-01	-0.00900
2004-10-01	0.60000
2005-07-01	0.40000
2005-10-01	1.11084
2006-01-01	1.00271
2006-04-01	-0.61039
2006-07-01	-0.04608
2007-04-01	0.45000
2007-10-01	0.32000
2008-04-01	-0.33010
2009-01-01	0.32300
2009-10-01	1.00000
2010-10-01	-0.15000
2011-01-01	0.07852
2011-07-01	0.71500
2012-01-01	-0.15000
2012-07-01	-0.28000
2012-10-01	1.50000
2013-04-01	0.75000
2013-07-01	0.10000
2013-10-01	0.33000
2014-04-01	0.36877
2014-07-01	1.25000
2014-10-01	0.18000
2015-01-01	-0.09600
2015-04-01	0.15000