Quarter	Billions of US Dollars
1993-07-01	0.37234
1993-10-01	-0.00500
1994-01-01	-0.01013
1994-04-01	-0.00106
1994-07-01	-0.03900
1994-10-01	-0.43138
1995-01-01	0.02664
1995-04-01	0.27156
1995-07-01	0.50114
1995-10-01	0.27955
1996-01-01	0.17777
1996-04-01	0.00119
1996-07-01	0.02437
1996-10-01	0.08206
1997-01-01	-0.16143
1997-04-01	-0.42000
1997-07-01	-0.20137
1997-10-01	-0.22734
1998-04-01	0.82132
1998-07-01	0.30883
1998-10-01	-0.15000
1999-01-01	0.66010
1999-04-01	0.09258
1999-07-01	0.81087
2000-01-01	0.14962
2000-04-01	0.35302
2000-07-01	0.06175
2000-10-01	1.97400
2001-01-01	0.06597
2001-04-01	0.29512
2001-07-01	-0.06533
2001-10-01	-0.00911
2002-01-01	0.02382
2002-04-01	-0.15200
2002-07-01	0.11774
2002-10-01	0.05333
2003-01-01	0.18215
2003-04-01	0.21314
2003-07-01	1.28101
2003-10-01	0.05765
2004-01-01	-0.01563
2004-04-01	0.95000
2004-07-01	-2.27744
2004-10-01	1.01563
2005-01-01	-0.32760
2005-04-01	0.50550
2005-07-01	-0.79285
2005-10-01	-0.12211
2006-01-01	1.25837
2006-04-01	-0.09903
2006-07-01	0.64570
2006-10-01	-0.23454
2007-01-01	-0.16404
2007-04-01	0.01158
2007-07-01	0.16297
2007-10-01	-0.40006
2008-01-01	-0.95985
2008-04-01	1.04800
2009-01-01	0.87915
2009-04-01	0.90662
2009-07-01	1.37648
2009-10-01	0.88400
2010-01-01	0.39319
2010-04-01	0.45997
2010-07-01	-0.27050
2010-10-01	-0.07593
2011-01-01	-0.10478
2011-04-01	0.30894
2011-07-01	-0.69129
2011-10-01	-0.00894
2012-01-01	-0.63989
2012-04-01	-0.32160
2012-07-01	0.55168
2012-10-01	0.32928
2013-01-01	-0.42950
2013-04-01	-1.21092
2013-07-01	-1.21700
2013-10-01	2.74509
2014-01-01	-0.25910
2014-04-01	-0.10550
2014-07-01	1.00000
2014-10-01	-0.18657
2015-04-01	0.99140