Quarter	Billions of US Dollars
1993-10-01	0.06470
1994-07-01	0.08139
1994-10-01	-0.18401
1995-01-01	-0.03439
1995-04-01	0.01235
1995-07-01	0.00420
1995-10-01	0.01015
1996-04-01	0.16630
1996-10-01	0.07350
1997-01-01	-0.04024
1997-07-01	0.01877
1997-10-01	-0.03740
1998-01-01	-0.01000
1998-04-01	0.16043
1998-07-01	0.04490
1998-10-01	-0.10400
1999-01-01	-0.09715
1999-04-01	-0.01421
1999-07-01	-0.00400
1999-10-01	-0.04500
2000-04-01	-0.06249
2000-07-01	0.01666
2000-10-01	-0.07118
2001-01-01	0.01500
2001-04-01	-0.00206
2001-07-01	-0.00713
2001-10-01	-0.02702
2002-01-01	0.18946
2002-04-01	0.00320
2002-07-01	0.01207
2002-10-01	0.00720
2003-01-01	0.00118
2003-04-01	-0.07151
2003-07-01	-0.00071
2003-10-01	0.00376
2004-01-01	0.00918
2004-04-01	0.05229
2004-07-01	0.00848
2004-10-01	0.32031
2005-01-01	-0.12555
2005-04-01	0.19474
2005-07-01	-0.07644
2005-10-01	0.03433
2006-01-01	0.25968
2006-04-01	0.00269
2006-07-01	0.00638
2006-10-01	0.40980
2007-01-01	0.31329
2007-04-01	0.19594
2007-07-01	0.06307
2007-10-01	0.40138
2008-01-01	-0.00500
2008-04-01	0.04585
2008-07-01	0.17945
2008-10-01	-0.08487
2009-01-01	0.14976
2009-04-01	0.38856
2009-07-01	0.49252
2009-10-01	0.11785
2010-01-01	0.86147
2010-04-01	0.12469
2010-07-01	0.29081
2010-10-01	0.59018
2011-01-01	0.46883
2011-04-01	0.06555
2011-07-01	0.43753
2011-10-01	0.26004
2012-01-01	0.22635
2012-04-01	-0.10194
2012-07-01	0.28551
2012-10-01	0.50868
2013-01-01	0.03687
2013-04-01	0.44711
2013-07-01	-0.15562
2013-10-01	1.44868
2014-01-01	1.11052
2014-04-01	1.39510
2014-07-01	0.72358
2014-10-01	0.55890
2015-01-01	0.30922
2015-04-01	1.29268