Quarter	Billions of US Dollars
1993-07-01	-0.16553
1993-10-01	-0.09123
1994-01-01	-0.04990
1994-04-01	0.02775
1994-07-01	0.05116
1994-10-01	-0.07456
1995-01-01	0.72136
1995-04-01	-0.14511
1995-07-01	0.13534
1995-10-01	0.25867
1996-01-01	-0.03226
1996-04-01	-0.19074
1996-07-01	0.04550
1996-10-01	0.34699
1997-01-01	-0.02800
1997-04-01	0.11662
1997-07-01	-0.05000
1997-10-01	0.09101
1998-01-01	0.17450
1998-04-01	-0.36624
1998-07-01	0.12900
1998-10-01	0.04751
1999-01-01	-0.11500
1999-04-01	0.08690
1999-07-01	-0.19000
1999-10-01	-0.10040
2000-01-01	-0.05000
2000-04-01	-0.01111
2000-07-01	0.01809
2000-10-01	-0.02585
2001-01-01	0.12032
2001-04-01	-0.08590
2001-07-01	0.78174
2001-10-01	1.05499
2002-04-01	0.09508
2002-07-01	0.44003
2002-10-01	-0.49743
2003-01-01	0.01411
2003-04-01	0.75625
2003-07-01	0.74142
2003-10-01	1.76545
2004-01-01	-0.20000
2004-04-01	0.50350
2004-07-01	0.05901
2004-10-01	-0.06736
2005-01-01	0.03094
2005-04-01	0.26160
2005-07-01	0.12230
2005-10-01	-0.08754
2006-01-01	-0.21713
2006-07-01	-0.83342
2006-10-01	2.12788
2007-01-01	0.04281
2007-04-01	1.45623
2007-07-01	-0.54004
2007-10-01	-1.09192
2008-01-01	0.14690
2008-04-01	-0.05000
2008-07-01	0.30026
2008-10-01	0.38962
2009-01-01	3.03950
2009-04-01	1.88240
2009-07-01	0.39121
2009-10-01	1.95004
2010-04-01	1.50295
2010-10-01	0.23203
2011-01-01	1.35286
2011-04-01	2.38774
2011-07-01	0.26000
2011-10-01	-1.24915
2012-01-01	0.67377
2012-04-01	1.03332
2012-07-01	3.47358
2012-10-01	0.37582
2013-01-01	4.75573
2013-04-01	0.39402
2013-07-01	1.72671
2013-10-01	1.56831
2014-01-01	1.27536
2014-04-01	0.14106
2014-07-01	0.06918
2014-10-01	-0.63801
2015-01-01	-0.02667
2015-04-01	2.24434