Quarter	Billions of US Dollars
1993-07-01	0.9303
1993-10-01	-0.1736
1994-01-01	0.0059
1994-04-01	0.0887
1994-07-01	0.0020
1994-10-01	0.9299
1995-01-01	-0.8150
1995-04-01	0.8987
1995-07-01	-0.8195
1995-10-01	0.2979
1996-01-01	-0.3950
1996-04-01	-0.0590
1996-07-01	-0.3163
1996-10-01	0.7682
1997-01-01	0.4355
1997-04-01	-0.6229
1997-07-01	0.2582
1997-10-01	0.6286
1998-01-01	0.1647
1998-04-01	1.1350
1998-07-01	-0.2697
1998-10-01	-0.5397
1999-01-01	1.4735
1999-04-01	0.2202
1999-07-01	0.2407
1999-10-01	-0.4112
2000-01-01	0.0737
2000-04-01	0.3775
2000-07-01	-0.6794
2000-10-01	1.1926
2001-01-01	-1.0921
2001-04-01	-0.8085
2001-07-01	-1.2280
2001-10-01	2.0554
2002-01-01	-1.4967
2002-04-01	1.0063
2002-07-01	0.9915
2002-10-01	-0.1386
2003-01-01	-0.1955
2003-04-01	-0.6471
2003-07-01	-0.7662
2003-10-01	2.2213
2004-01-01	-0.9416
2004-04-01	-1.7156
2004-07-01	1.3203
2004-10-01	1.5475
2005-01-01	3.3592
2005-04-01	-1.1200
2005-07-01	1.5923
2005-10-01	-0.2504
2006-01-01	1.7036
2006-04-01	0.3218
2006-07-01	-1.2487
2006-10-01	1.1877
2007-01-01	4.9047
2007-04-01	1.0144
2007-07-01	-0.5299
2007-10-01	-1.2287
2008-01-01	2.5219
2008-04-01	-7.0827
2008-07-01	5.1439
2008-10-01	2.2968
2009-01-01	-5.6873
2009-04-01	-8.5262
2009-07-01	-0.6005
2009-10-01	2.9555
2010-01-01	-0.5608
2010-04-01	3.3337
2010-07-01	-3.3920
2010-10-01	4.5362
2011-01-01	8.0229
2011-04-01	-3.2754
2011-07-01	10.4239
2011-10-01	2.9783
2012-01-01	-1.2934
2012-04-01	0.9117
2012-07-01	-3.3686
2012-10-01	2.8879
2013-01-01	-11.8808
2013-04-01	3.4530
2013-07-01	-2.2881
2013-10-01	-1.7851
2014-01-01	-1.0997
2014-04-01	-0.1610
2014-07-01	5.2169
2014-10-01	4.6536
2015-01-01	10.5984
2015-04-01	-4.7202