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	0.19999
1994-10-01	0.11319
1995-01-01	-0.27783
1995-04-01	-0.09372
1995-07-01	0.16129
1995-10-01	0.08848
1996-01-01	0.15313
1996-04-01	0.33759
1996-07-01	0.09238
1996-10-01	-1.17129
1997-01-01	-0.01623
1997-04-01	-0.01867
1997-07-01	-0.01650
1997-10-01	-0.01700
1998-01-01	-0.03435
1998-04-01	-0.03831
1998-07-01	0.00832
1998-10-01	0.42387
1999-01-01	0.51868
1999-04-01	-0.04693
1999-07-01	0.04423
1999-10-01	0.71913
2000-01-01	-0.54863
2000-04-01	-0.04212
2000-07-01	0.00197
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	-0.03550
2004-01-01	-0.04363
2004-04-01	-0.11199
2004-07-01	0.24514
2004-10-01	-0.25695
2005-01-01	-0.14305
2005-04-01	-0.00045
2005-07-01	-0.23844
2005-10-01	0.10009
2006-01-01	0.00400
2006-04-01	0.00750
2006-07-01	-0.73066
2006-10-01	0.00116
2007-01-01	-0.00502
2007-04-01	0.04198
2007-07-01	-0.03244
2007-10-01	0.46868
2008-01-01	-0.00269
2008-04-01	0.00054
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	-0.00219
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