Quarter	Billions of US Dollars
1993-07-01	-0.0569
1993-10-01	0.5467
1994-01-01	1.0547
1994-04-01	0.1669
1994-07-01	0.9227
1994-10-01	2.7126
1995-01-01	2.4576
1995-04-01	0.1900
1995-07-01	2.8622
1995-10-01	2.0448
1996-01-01	0.1383
1996-04-01	2.0699
1996-07-01	2.5680
1996-10-01	0.6402
1997-01-01	1.6107
1997-04-01	0.4632
1997-07-01	1.7419
1997-10-01	-1.3521
1998-01-01	-1.0468
1998-04-01	-0.2859
1998-07-01	-1.5967
1998-10-01	-2.0657
1999-01-01	0.4523
1999-04-01	0.8639
1999-07-01	-0.2028
1999-10-01	-1.0535
2000-01-01	-0.9259
2000-04-01	-0.0023
2000-07-01	-0.5750
2000-10-01	-0.1706
2001-01-01	1.2779
2001-04-01	0.7239
2001-07-01	1.2497
2001-10-01	0.4096
2002-01-01	0.8707
2002-04-01	1.2096
2002-07-01	2.3568
2002-10-01	4.5708
2003-01-01	5.9429
2003-04-01	4.9289
2003-07-01	3.0633
2003-10-01	8.0606
2004-01-01	10.7212
2004-04-01	8.0534
2004-07-01	3.3644
2004-10-01	5.7852
2005-01-01	11.0692
2005-04-01	5.8551
2005-07-01	4.7143
2005-10-01	8.9490
2006-01-01	11.6586
2006-04-01	4.7500
2006-07-01	5.4493
2006-10-01	5.4016
2007-01-01	10.4287
2007-04-01	6.7868
2007-07-01	-0.6591
2007-10-01	-1.9680
2008-01-01	7.2101
2008-04-01	6.2861
2008-07-01	-3.8966
2008-10-01	0.8009
2009-01-01	-3.4567
2009-04-01	3.6160
2009-07-01	0.1763
2009-10-01	11.3767
2010-01-01	11.4416
2010-04-01	1.7930
2010-07-01	4.8825
2010-10-01	0.8204
2011-01-01	8.1233
2011-04-01	3.2668
2011-07-01	5.5339
2011-10-01	0.6380
2012-01-01	1.0928
2012-04-01	0.4330
2012-07-01	10.0832
2012-10-01	-0.2665
2013-01-01	-0.3822
2013-04-01	3.6049
2013-07-01	1.5729
2013-10-01	0.3299
2014-01-01	7.6564
2014-04-01	1.9780
2014-07-01	10.1420
2014-10-01	1.2051
2015-01-01	-2.4878
2015-04-01	-0.3640