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	0.1038
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
1981-10-01	0.0500
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	-0.0572
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	-0.0385
1989-10-01	-0.1119
1990-01-01	-0.0150
1990-07-01	-0.1684
1990-10-01	0.0210
1991-04-01	0.0150
1991-10-01	0.7250
1992-01-01	0.2450
1992-04-01	0.2500
1992-07-01	0.5200
1992-10-01	0.3945
1993-01-01	0.4044
1993-04-01	17.5614
1993-07-01	0.6935
1993-10-01	11.8521
1994-01-01	1.1625
1994-04-01	0.0469
1994-07-01	1.0303
1994-10-01	2.2344
1995-01-01	-0.0626
1995-04-01	1.8184
1995-07-01	1.6030
1995-10-01	2.1569
1996-01-01	1.9439
1996-04-01	3.8954
1996-07-01	2.3363
1996-10-01	3.5794
1997-01-01	5.8563
1997-04-01	2.2107
1997-07-01	5.9518
1997-10-01	0.3029
1998-01-01	3.3725
1998-04-01	7.0058
1998-07-01	2.2963
1998-10-01	-5.9949
1999-01-01	1.8125
1999-04-01	4.2206
1999-07-01	1.8934
1999-10-01	2.3913
2000-01-01	5.0092
2000-04-01	3.9319
2000-07-01	2.1537
2000-10-01	-1.6194
2001-01-01	1.5584
2001-04-01	4.7416
2001-07-01	-0.4499
2001-10-01	-0.5724
2002-01-01	-0.3058
2002-04-01	-0.3745
2002-07-01	-1.2295
2002-10-01	-0.4168
2003-01-01	-1.2727
2003-04-01	-0.9569
2003-07-01	-1.0437
2003-10-01	0.0377
2004-01-01	-0.5418
2004-04-01	-2.5460
2004-07-01	-1.3434
2004-10-01	-0.0413
2005-01-01	-0.0900
2005-04-01	-30.5219
2005-07-01	-0.1115
2005-10-01	0.3621
2006-01-01	0.2072
2006-04-01	-0.3828
2006-07-01	0.0344
2006-10-01	0.5858
2007-01-01	-0.3624
2007-04-01	1.6162
2007-07-01	1.2215
2007-10-01	0.3943
2008-01-01	-1.6932
2008-04-01	-1.9261
2008-07-01	-0.5538
2008-10-01	-7.0492
2009-01-01	-0.7896
2009-04-01	-1.1283
2009-07-01	-2.1500
2009-10-01	-0.3552
2010-01-01	-0.2890
2010-04-01	1.4088
2010-07-01	0.6086
2010-10-01	0.8527
2011-01-01	1.2572
2011-04-01	0.0690
2011-07-01	-0.5741
2011-10-01	-0.4336
2012-01-01	-0.5297
2012-04-01	-0.4270
2012-07-01	-0.0671
2012-10-01	-0.0120
2013-01-01	-0.0999
2013-04-01	-0.0070
2013-10-01	-0.1756
2014-01-01	-0.0983
2014-04-01	0.9580
2014-07-01	-0.3183
2014-10-01	-0.7382
2015-01-01	1.5366
2015-04-01	0.7738