Quarter	Billions of US Dollars
1990-04-01	0.0510
1990-07-01	-0.0380
1990-10-01	0.2280
1991-01-01	-0.0370
1991-04-01	-0.0660
1991-07-01	0.1030
1991-10-01	-0.1280
1992-01-01	0.0460
1992-04-01	-0.0860
1992-07-01	-0.0320
1992-10-01	0.0220
1993-01-01	-0.0260
1993-04-01	0.0300
1993-07-01	0.1989
1993-10-01	0.3915
1994-01-01	1.0995
1994-04-01	0.3726
1994-07-01	-0.2233
1994-10-01	-0.0044
1995-01-01	0.5559
1995-04-01	0.5619
1995-07-01	0.3398
1995-10-01	1.8263
1996-01-01	-1.0204
1996-04-01	3.3092
1996-07-01	0.0443
1996-10-01	1.4141
1997-01-01	1.3107
1997-04-01	1.3814
1997-07-01	-1.1972
1997-10-01	1.2930
1998-01-01	-0.9828
1998-04-01	-1.2042
1998-07-01	2.6162
1998-10-01	3.4783
1999-01-01	-1.3078
1999-04-01	4.5510
1999-07-01	4.4706
1999-10-01	3.6938
2000-01-01	2.5676
2000-04-01	17.8795
2000-07-01	4.0286
2000-10-01	0.0929
2001-01-01	-8.3941
2001-04-01	-6.4870
2001-07-01	-0.2339
2001-10-01	3.3545
2002-01-01	-5.7060
2002-04-01	-4.8344
2002-07-01	-4.6688
2002-10-01	-3.4400
2003-01-01	-1.8439
2003-04-01	-2.0057
2003-07-01	-1.7459
2003-10-01	-0.1558
2004-01-01	-0.6739
2004-04-01	1.1595
2004-07-01	-2.4364
2004-10-01	-0.8118
2005-01-01	2.7588
2005-04-01	-1.9281
2005-07-01	3.5395
2005-10-01	-5.9006
2006-01-01	0.4537
2006-04-01	-0.3696
2006-07-01	2.6379
2006-10-01	-1.9060
2007-01-01	1.5718
2007-04-01	1.8660
2007-07-01	-0.7429
2007-10-01	7.5701
2008-01-01	5.9231
2008-04-01	7.1881
2008-07-01	-1.3846
2008-10-01	-8.6095
2009-01-01	-5.7611
2009-04-01	-5.8613
2009-07-01	-2.9613
2009-10-01	1.7483
2010-01-01	1.2298
2010-04-01	0.2490
2010-07-01	0.5147
2010-10-01	-0.8458
2011-01-01	-1.0738
2011-04-01	0.0724
2011-07-01	1.4130
2011-10-01	-1.6859
2012-01-01	-1.8305
2012-04-01	-0.2193
2012-07-01	-0.6022
2012-10-01	0.1046
2013-01-01	0.2778
2013-04-01	-0.0065
2013-07-01	0.0002
2013-10-01	1.5774
2014-01-01	-1.0926
2014-04-01	3.0883
2014-07-01	0.8691
2014-10-01	-3.5637
2015-01-01	0.8870
2015-04-01	-0.3838