Quarter	Billions of US Dollars
1993-07-01	0.02000
1993-10-01	-0.02000
1994-01-01	0.14626
1994-04-01	0.06909
1994-07-01	0.23699
1994-10-01	0.09119
1995-01-01	-0.29283
1995-04-01	-0.09372
1995-07-01	0.16129
1995-10-01	0.08848
1996-01-01	0.15313
1996-04-01	0.48364
1996-07-01	0.15707
1996-10-01	0.00780
1997-01-01	-0.01314
1997-04-01	-0.05697
1997-07-01	-0.03329
1997-10-01	-0.02200
1998-01-01	0.10879
1998-04-01	0.03505
1998-07-01	0.00083
1998-10-01	0.34782
1999-01-01	0.51274
1999-04-01	-0.07762
1999-07-01	-0.05205
1999-10-01	0.57653
2000-01-01	-0.55760
2000-04-01	-0.04607
2000-07-01	0.00187
2000-10-01	-0.72665
2001-01-01	0.03236
2001-04-01	0.26901
2001-07-01	0.03821
2001-10-01	-0.17460
2002-01-01	-0.05433
2002-04-01	0.11809
2002-07-01	-0.19532
2002-10-01	0.25206
2003-01-01	-0.26394
2003-04-01	-0.06300
2003-07-01	0.07855
2003-10-01	-0.02613
2004-01-01	-0.04363
2004-04-01	-0.05168
2004-07-01	0.24476
2004-10-01	-0.25692
2005-01-01	-0.14118
2005-04-01	0.00014
2005-07-01	-0.25022
2005-10-01	0.11609
2006-01-01	0.00400
2006-04-01	0.00750
2006-07-01	-0.73066
2006-10-01	0.00516
2007-01-01	-0.00502
2007-04-01	0.12698
2007-07-01	-0.03244
2007-10-01	0.46868
2008-01-01	-0.00769
2008-04-01	-0.00946
2008-07-01	-0.08815
2008-10-01	-0.00581
2009-01-01	-0.01150
2009-04-01	0.01126
2009-07-01	-0.05202
2009-10-01	-0.00354
2010-01-01	-0.00646
2010-04-01	-0.23458
2010-07-01	-0.10800
2011-01-01	0.00081
2011-04-01	0.02189
2011-07-01	-0.00803
2011-10-01	-0.01436
2012-01-01	0.00294
2012-04-01	-0.15219
2012-07-01	-0.00106
2012-10-01	0.00073
2013-01-01	0.00307
2013-04-01	0.00712
2013-07-01	-7.80917
2013-10-01	0.02978
2014-01-01	0.03521
2014-04-01	-0.03431
2014-07-01	0.00001
2014-10-01	-0.01599
2015-01-01	-0.02546