Quarter	Billions of US Dollars
1993-07-01	0.08994
1993-10-01	-0.41514
1994-01-01	-0.32618
1994-04-01	-0.18856
1994-07-01	0.03127
1994-10-01	-0.15099
1995-01-01	-0.09589
1995-04-01	0.10293
1995-07-01	-0.20491
1995-10-01	-0.06089
1996-01-01	0.04024
1996-04-01	-0.37220
1996-07-01	0.02573
1996-10-01	-0.12612
1997-01-01	0.15892
1997-04-01	0.01997
1997-07-01	-0.27220
1997-10-01	1.53385
1998-01-01	-0.09180
1998-04-01	-0.05115
1998-07-01	0.01626
1998-10-01	-0.00094
1999-01-01	0.23966
1999-04-01	-0.02588
1999-07-01	-0.23175
1999-10-01	0.79770
2000-01-01	-0.09811
2000-04-01	0.72603
2000-07-01	0.48293
2000-10-01	0.40826
2001-01-01	1.04663
2001-04-01	0.97351
2001-07-01	-0.44174
2001-10-01	0.32803
2002-01-01	0.05235
2002-04-01	0.15405
2002-07-01	-0.39465
2002-10-01	0.68336
2003-01-01	0.06647
2003-04-01	-0.01563
2003-07-01	2.90146
2003-10-01	-0.12432
2004-01-01	0.06363
2004-04-01	0.98822
2004-07-01	0.34388
2004-10-01	0.33048
2005-01-01	-0.72329
2005-04-01	0.81321
2005-07-01	0.00208
2005-10-01	-0.09928
2006-01-01	-0.24398
2006-04-01	2.18162
2006-07-01	-0.05954
2006-10-01	-0.99090
2007-01-01	-0.16259
2007-04-01	-0.11348
2007-07-01	-0.01123
2007-10-01	-0.38701
2008-01-01	-0.74895
2008-04-01	-0.72551
2008-07-01	-0.04221
2008-10-01	-0.20149
2009-01-01	4.05737
2009-04-01	3.06169
2009-07-01	0.52673
2009-10-01	-0.40169
2010-01-01	0.16795
2010-04-01	-0.19624
2010-07-01	1.57329
2010-10-01	-1.05596
2011-01-01	-0.03416
2011-04-01	0.53348
2011-07-01	-0.33630
2011-10-01	-0.29465
2012-01-01	4.02908
2012-04-01	0.23098
2012-07-01	2.20035
2012-10-01	2.91109
2013-01-01	0.42601
2013-04-01	0.32653
2013-07-01	0.69956
2013-10-01	-0.74063
2014-01-01	-1.99973
2014-04-01	-2.04164
2014-07-01	0.03588
2014-10-01	-0.76629
2015-01-01	1.11207
2015-04-01	-0.31701