Quarter	Billions of US Dollars
1993-07-01	0.47924
1993-10-01	0.85919
1994-01-01	3.81199
1994-04-01	0.89660
1994-07-01	7.24478
1994-10-01	-1.01600
1995-01-01	1.42872
1995-04-01	1.08554
1995-07-01	2.15059
1995-10-01	1.25437
1996-01-01	1.15565
1996-04-01	-2.19284
1996-07-01	6.97796
1996-10-01	0.86137
1997-01-01	-1.27111
1997-04-01	2.86208
1997-07-01	-6.62335
1997-10-01	2.54468
1998-01-01	1.25536
1998-04-01	0.11548
1998-07-01	-1.70716
1998-10-01	0.42499
1999-01-01	-1.02961
1999-04-01	2.42375
1999-07-01	-6.13569
1999-10-01	1.10714
2000-01-01	-0.90138
2000-04-01	2.29778
2000-07-01	-0.58697
2000-10-01	-1.13051
2001-01-01	-0.80573
2001-04-01	-0.47515
2001-07-01	-0.11908
2001-10-01	-1.80707
2002-01-01	0.75106
2002-04-01	-5.02525
2002-07-01	-0.12254
2002-10-01	0.26520
2003-01-01	1.94562
2003-04-01	0.90555
2003-07-01	3.09972
2003-10-01	1.73271
2004-01-01	2.13797
2004-04-01	2.63889
2004-07-01	0.78970
2004-10-01	3.34083
2005-01-01	-3.32321
2005-04-01	0.25806
2005-07-01	-0.48581
2005-10-01	-0.40053
2006-01-01	4.68663
2006-04-01	0.68134
2006-07-01	3.68292
2006-10-01	4.16356
2007-01-01	-1.26705
2007-04-01	-0.27572
2007-07-01	0.07705
2007-10-01	-1.00594
2008-01-01	-2.14895
2008-04-01	-0.89072
2008-07-01	-0.97191
2008-10-01	0.92370
2009-01-01	-0.39897
2009-04-01	0.32453
2009-07-01	2.25458
2009-10-01	0.77205
2010-01-01	3.56653
2010-04-01	6.54692
2010-07-01	7.46721
2010-10-01	7.72581
2011-01-01	1.69318
2011-04-01	2.27443
2011-07-01	2.54236
2011-10-01	0.26675
2012-01-01	1.21663
2012-04-01	-1.65693
2012-07-01	-3.28049
2012-10-01	-2.27337
2013-01-01	-1.48338
2013-04-01	-1.07168
2013-07-01	-1.78425
2013-10-01	-0.65615
2014-01-01	-0.20522
2014-04-01	2.46272
2014-07-01	-0.23006
2014-10-01	0.87379
2015-01-01	-5.77679
2015-04-01	-1.49605