Quarter	Billions of US Dollars
1976-04-01	0.01020
1976-10-01	0.03470
1977-01-01	0.02830
1978-01-01	0.02510
1978-07-01	0.06640
1979-07-01	0.02180
1980-01-01	0.02230
1985-10-01	-0.02327
1986-07-01	-0.00824
1986-10-01	-0.03410
1987-01-01	-0.02667
1987-07-01	-0.01416
1988-01-01	-0.02546
1988-07-01	-0.03932
1988-10-01	-0.00284
1989-07-01	-0.00470
1990-01-01	-0.02525
1996-07-01	0.29047
1996-10-01	0.10000
1999-04-01	0.15153
2001-10-01	-0.10000
2002-01-01	-9.35098
2002-07-01	-0.22490
2003-07-01	0.46490
2004-04-01	-0.16700
2007-04-01	0.67073
2008-07-01	-0.60051
2010-10-01	1.34689
2012-10-01	1.50000
2013-04-01	0.75000
2013-10-01	0.60000
2014-04-01	2.90400
2014-07-01	0.07376
2015-04-01	1.00000