Quarter	Billions of US Dollars
1989-10-01	2.03700
1990-01-01	1.46200
1990-04-01	-1.59200
1990-07-01	0.90800
1990-10-01	-0.22100
1991-01-01	0.69600
1991-04-01	-1.65900
1991-07-01	-0.39300
1991-10-01	1.76800
1992-01-01	-1.76100
1992-04-01	0.76800
1992-07-01	1.80800
1992-10-01	-1.26100
1993-01-01	-0.43600
1993-04-01	0.39800
1993-07-01	5.99096
1993-10-01	-0.53988
1994-01-01	-0.84596
1994-04-01	-0.85824
1994-07-01	0.76157
1994-10-01	-1.69864
1995-01-01	0.45025
1995-04-01	2.01598
1995-07-01	-0.44422
1995-10-01	0.03039
1996-01-01	0.21210
1996-04-01	-0.76059
1996-07-01	1.56141
1996-10-01	-1.35895
1997-01-01	0.33889
1997-04-01	1.46274
1997-07-01	-0.28851
1997-10-01	-0.68596
1998-01-01	1.01721
1998-04-01	-1.96012
1998-07-01	1.54734
1998-10-01	1.14440
1999-01-01	-0.98373
1999-04-01	-0.91624
1999-07-01	0.65538
1999-10-01	0.75354
2000-01-01	1.49998
2000-04-01	-0.42946
2000-07-01	-0.25119
2000-10-01	0.55855
2001-01-01	1.63476
2001-04-01	-2.46412
2001-07-01	0.35474
2001-10-01	-0.13826
2002-01-01	-0.73311
2002-04-01	0.19324
2002-07-01	1.02385
2002-10-01	-0.12692
2003-01-01	-0.05223
2003-04-01	-0.60585
2003-07-01	-1.97193
2003-10-01	0.27053
2004-01-01	2.18163
2004-04-01	-0.43857
2004-07-01	2.50403
2004-10-01	-1.16490
2005-01-01	-0.26059
2005-04-01	-1.15393
2005-07-01	1.06082
2005-10-01	1.39122
2006-01-01	1.36908
2006-04-01	-0.32779
2006-07-01	-1.16572
2006-10-01	-0.21007
2007-01-01	-1.10255
2007-04-01	-1.23093
2007-07-01	1.60827
2007-10-01	-0.02791
2008-01-01	1.26822
2008-04-01	1.87044
2008-07-01	-0.64414
2008-10-01	-0.63818
2009-01-01	-0.91287
2009-04-01	0.60945
2009-07-01	0.23037
2009-10-01	-2.34074
2010-01-01	0.44605
2010-04-01	1.09033
2010-07-01	-0.22498
2010-10-01	-3.83696
2011-01-01	1.57317
2011-04-01	0.76950
2011-07-01	1.19546
2011-10-01	-0.11022
2012-01-01	-1.16552
2012-04-01	-0.82606
2012-07-01	1.63730
2012-10-01	0.05860
2013-01-01	-0.81459
2013-04-01	0.64625
2013-07-01	-0.88179
2013-10-01	-1.17939
2014-01-01	2.38169
2014-04-01	-0.31205
2014-07-01	3.60330
2014-10-01	-1.75750
2015-01-01	0.12607
2015-04-01	0.92781