Quarter	Billions of US Dollars
1975-04-01	0.0160
1977-07-01	0.0680
1978-01-01	0.0873
1978-04-01	0.0977
1978-10-01	0.0814
1979-01-01	0.1688
1979-04-01	0.1789
1979-07-01	0.0471
1979-10-01	0.0868
1980-07-01	0.1395
1980-10-01	0.0250
1981-04-01	0.1149
1981-07-01	0.0850
1981-10-01	0.1500
1982-01-01	0.1000
1982-04-01	-0.0160
1982-07-01	-0.0250
1983-04-01	-0.0300
1984-04-01	-0.0656
1984-07-01	-0.0343
1985-01-01	-0.0461
1985-10-01	-0.0619
1986-01-01	-0.0926
1986-04-01	-0.0917
1986-10-01	-0.1572
1987-01-01	-0.1000
1987-04-01	-0.1032
1987-07-01	-0.0163
1987-10-01	-0.0250
1988-01-01	-0.0179
1988-10-01	-0.0700
1989-04-01	-0.0233
1989-07-01	-0.1235
1989-10-01	-0.1119
1990-01-01	-0.0150
1990-07-01	-0.1684
1990-10-01	0.0210
1991-04-01	0.0650
1991-10-01	0.7250
1992-01-01	0.0750
1992-04-01	0.1600
1992-07-01	0.5200
1992-10-01	0.3945
1993-01-01	0.4394
1993-04-01	17.4614
1993-07-01	0.6185
1993-10-01	11.6821
1994-01-01	0.9112
1994-04-01	-0.1106
1994-07-01	0.9801
1994-10-01	2.3347
1995-01-01	0.0646
1995-04-01	1.8359
1995-07-01	1.5295
1995-10-01	2.1019
1996-01-01	1.9439
1996-04-01	4.1307
1996-07-01	2.3346
1996-10-01	3.7182
1997-01-01	5.2861
1997-04-01	2.3852
1997-07-01	5.9022
1997-10-01	0.1728
1998-01-01	3.2632
1998-04-01	6.8500
1998-07-01	1.9383
1998-10-01	-6.1524
1999-01-01	1.7399
1999-04-01	3.6318
1999-07-01	1.9403
1999-10-01	2.4020
2000-01-01	4.8088
2000-04-01	3.4415
2000-07-01	2.3813
2000-10-01	-1.7748
2001-01-01	1.4558
2001-04-01	5.0003
2001-07-01	-0.4329
2001-10-01	-0.6047
2002-01-01	-0.2166
2002-04-01	-0.5120
2002-07-01	-1.2646
2002-10-01	-0.2461
2003-01-01	-1.0213
2003-04-01	-0.5586
2003-07-01	-0.7921
2003-10-01	-0.2017
2004-01-01	-0.5405
2004-04-01	-2.7871
2004-07-01	-1.1699
2004-10-01	0.1631
2005-01-01	0.1175
2005-04-01	-30.6317
2005-07-01	-0.2279
2005-10-01	0.0369
2006-01-01	0.1701
2006-04-01	-0.1828
2006-07-01	-0.2156
2006-10-01	0.5558
2007-01-01	-0.3694
2007-04-01	0.4953
2007-07-01	-0.8252
2007-10-01	0.3677
2008-01-01	-1.6932
2008-04-01	-1.9361
2008-07-01	-0.6003
2008-10-01	-6.5992
2009-01-01	-0.7896
2009-04-01	-0.8560
2009-07-01	0.0500
2009-10-01	0.0729
2010-01-01	-0.2890
2010-04-01	1.0248
2010-07-01	0.7331
2010-10-01	0.7425
2011-01-01	1.3150
2011-04-01	-0.1421
2011-07-01	-0.3190
2011-10-01	-0.1484
2012-01-01	-0.2698
2012-04-01	-0.2795
2012-07-01	-0.0671
2013-01-01	0.3001
2013-04-01	0.1930
2013-07-01	0.3750
2013-10-01	0.0494
2014-01-01	-0.0983
2014-04-01	1.2880
2014-07-01	0.0684
2014-10-01	-0.9182
2015-01-01	1.5286
2015-04-01	0.7738