Quarter	Billions of US Dollars
1972-01-01	0.02000
1972-04-01	0.03990
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
1979-07-01	0.11500
1980-04-01	0.10000
1980-07-01	0.02500
1982-01-01	-0.01408
1982-07-01	-0.02500
1983-01-01	-0.00920
1983-04-01	0.10000
1984-01-01	-0.02000
1984-10-01	0.10000
1985-07-01	0.03480
1985-10-01	-0.10212
1986-01-01	-0.02017
1986-10-01	0.01800
1987-01-01	0.09750
1987-04-01	0.11704
1987-07-01	-0.02650
1988-01-01	-0.09176
1988-10-01	-0.00100
1989-04-01	-0.05827
1989-07-01	-0.07100
1990-07-01	-0.08726
1990-10-01	-0.13815
1992-01-01	-0.10300
1992-04-01	-0.07583
1993-01-01	-0.04132
1993-10-01	-0.08915
1994-01-01	-0.11150
1995-10-01	-0.08535
1996-01-01	-0.02000
1996-07-01	3.29701
1997-01-01	0.40000
1997-07-01	0.81500
1997-10-01	0.13100
1998-04-01	0.30000
1998-07-01	-0.07500
1998-10-01	-0.61330
1999-01-01	0.50000
1999-04-01	-0.00468
1999-10-01	-0.00468
2000-04-01	-0.03049
2000-07-01	0.35000
2000-10-01	-0.00467
2001-01-01	1.03066
2001-04-01	-0.14995
2001-07-01	-0.04285
2001-10-01	-0.35876
2002-01-01	-0.34703
2002-04-01	-0.00468
2002-07-01	0.09634
2002-10-01	0.02415
2003-01-01	0.16800
2003-04-01	-0.00668
2003-07-01	-0.04684
2003-10-01	-0.00468
2004-01-01	0.17870
2004-04-01	-0.02913
2004-07-01	-0.00900
2004-10-01	0.59532
2005-04-01	-0.00468
2005-07-01	0.40000
2005-10-01	1.10616
2006-01-01	1.30271
2006-04-01	-0.61039
2006-07-01	0.05392
2006-10-01	0.29065
2007-04-01	0.44532
2007-10-01	0.47477
2008-04-01	-0.36978
2008-10-01	-0.00468
2009-01-01	0.32300
2009-04-01	-0.00468
2009-10-01	1.00000
2010-04-01	0.00548
2010-10-01	-0.15418
2011-01-01	0.07852
2011-04-01	-0.00856
2011-07-01	0.91607
2011-10-01	0.40781
2012-01-01	-0.15518
2012-04-01	0.33905
2012-07-01	-0.28468
2012-10-01	1.08179
2013-01-01	0.31168
2013-04-01	1.22000
2013-07-01	0.10264
2013-10-01	0.32963
2014-01-01	0.20000
2014-04-01	1.40627
2014-07-01	1.24736
2014-10-01	-0.21833
2015-01-01	-0.09875
2015-04-01	0.48000