Quarter	Billions of US Dollars
1993-07-01	4.7471
1993-10-01	0.3420
1994-01-01	-0.8119
1994-04-01	-0.5852
1994-07-01	-0.6063
1994-10-01	-0.0732
1995-01-01	0.4925
1995-04-01	-1.5021
1995-07-01	0.0046
1995-10-01	0.7699
1996-01-01	-0.4812
1996-04-01	5.6240
1996-07-01	-0.9523
1996-10-01	-1.2412
1997-01-01	1.7014
1997-04-01	-1.4304
1997-07-01	1.0978
1997-10-01	0.5989
1998-01-01	0.7390
1998-04-01	-1.2738
1998-07-01	2.6554
1998-10-01	1.1901
1999-01-01	-0.8483
1999-04-01	-2.4343
1999-07-01	0.4147
1999-10-01	0.0566
2000-01-01	0.3793
2000-04-01	0.8373
2000-07-01	1.3143
2000-10-01	0.6119
2001-01-01	1.7830
2001-04-01	0.2274
2001-07-01	-1.5013
2001-10-01	-1.3175
2002-01-01	1.6679
2002-04-01	1.4740
2002-07-01	-2.2845
2002-10-01	2.7390
2003-01-01	-0.4585
2003-04-01	0.6179
2003-07-01	2.7163
2003-10-01	-1.0960
2004-01-01	4.5811
2004-04-01	3.5466
2004-07-01	7.4898
2004-10-01	0.3895
2005-01-01	5.7412
2005-04-01	0.5452
2005-07-01	2.6535
2005-10-01	-9.3331
2006-01-01	0.7768
2006-04-01	-1.2602
2006-07-01	-5.8284
2006-10-01	6.1446
2007-01-01	1.0579
2007-04-01	12.5388
2007-07-01	-5.7574
2007-10-01	9.7668
2008-01-01	12.0295
2008-04-01	17.1905
2008-07-01	-0.0220
2008-10-01	-0.7610
2009-01-01	3.7675
2009-04-01	-7.3850
2009-07-01	-10.7864
2009-10-01	-1.1862
2010-01-01	10.1579
2010-04-01	6.7256
2010-07-01	0.2477
2010-10-01	1.3137
2011-01-01	19.1447
2011-04-01	-7.3598
2011-07-01	-4.6870
2011-10-01	-3.3744
2012-01-01	0.9370
2012-04-01	-19.2890
2012-07-01	6.6153
2012-10-01	-8.1762
2013-01-01	5.3438
2013-04-01	0.0607
2013-07-01	3.0157
2013-10-01	-4.8278
2014-01-01	12.5338
2014-04-01	0.6681
2014-07-01	8.5155
2014-10-01	-10.4072
2015-01-01	6.6715
2015-04-01	-6.7190