Quarter	Billions of US Dollars
1993-07-01	0.00344
1993-10-01	-0.00005
1994-01-01	-0.00034
1994-07-01	0.00049
1995-01-01	-0.00075
1995-07-01	0.27191
1995-10-01	0.40976
1996-01-01	0.14989
1996-04-01	0.14018
1996-07-01	0.19469
1996-10-01	1.80000
1997-01-01	-0.00010
1997-04-01	0.36363
1997-07-01	0.32813
1997-10-01	0.42726
1998-01-01	0.36684
1998-04-01	0.46699
1998-07-01	0.39133
1998-10-01	-0.12157
1999-01-01	0.76377
1999-04-01	0.17158
1999-07-01	0.10652
1999-10-01	0.47659
2000-01-01	0.30817
2000-04-01	0.61573
2000-07-01	0.26351
2000-10-01	-0.11349
2001-01-01	-0.00743
2001-04-01	1.20620
2001-07-01	-0.07250
2001-10-01	0.00240
2002-01-01	0.01913
2002-04-01	-0.01186
2002-07-01	-0.27005
2002-10-01	-0.10640
2003-01-01	0.02412
2003-04-01	0.04377
2003-07-01	1.71320
2003-10-01	0.28057
2004-01-01	1.63427
2004-04-01	0.17443
2004-07-01	-0.02737
2004-10-01	0.23108
2005-01-01	-0.12003
2005-04-01	-0.57807
2005-07-01	3.23710
2005-10-01	0.16837
2006-01-01	2.41057
2006-04-01	1.08483
2006-07-01	2.39530
2006-10-01	4.60911
2007-01-01	-0.48572
2007-04-01	2.55849
2007-07-01	3.60834
2007-10-01	2.56466
2008-01-01	1.80118
2008-04-01	3.85428
2008-07-01	0.84188
2008-10-01	-0.98495
2009-01-01	-0.13112
2009-04-01	0.26942
2009-07-01	7.78367
2009-10-01	0.48196
2010-01-01	-0.08505
2010-04-01	1.77472
2010-07-01	1.01922
2010-10-01	2.40109
2011-01-01	3.75382
2011-04-01	-1.26386
2011-07-01	-0.96884
2011-10-01	6.33758
2012-01-01	2.92166
2012-04-01	0.70681
2012-07-01	1.13063
2012-10-01	1.98559
2013-01-01	-0.65512
2013-04-01	-0.12757
2013-07-01	-0.39181
2013-10-01	-1.52701
2014-01-01	0.79705
2014-04-01	7.78431
2014-07-01	-4.14172
2014-10-01	5.22845
2015-01-01	2.11047
2015-04-01	2.24536