Quarter	Billions of US Dollars
1993-07-01	0.50000
1993-10-01	0.37053
1994-04-01	0.73500
1994-07-01	0.10000
1994-10-01	0.76000
1995-07-01	1.55000
1995-10-01	0.35000
1996-01-01	0.26438
1996-04-01	0.20430
1996-07-01	0.04500
1996-10-01	2.05000
1997-01-01	0.30940
1997-04-01	0.89600
1997-07-01	0.50000
1997-10-01	0.33301
1998-01-01	-0.05000
1998-07-01	-0.10000
1999-01-01	0.45211
1999-04-01	-0.10800
1999-07-01	0.61900
1999-10-01	-0.14600
2000-01-01	0.00500
2000-04-01	0.14200
2000-10-01	0.05843
2001-04-01	0.43477
2001-07-01	0.00850
2001-10-01	-0.19500
2002-01-01	0.12017
2002-07-01	-0.45000
2002-10-01	-0.17034
2003-01-01	-0.09258
2003-04-01	-0.05720
2003-07-01	-0.85300
2003-10-01	-0.52930
2004-01-01	-0.31708
2004-04-01	-0.68707
2004-07-01	0.35000
2004-10-01	-0.26944
2005-01-01	-0.22500
2005-07-01	-0.57500
2006-01-01	-0.09598
2006-04-01	-0.12236
2006-10-01	-0.80000
2007-01-01	-0.11168
2007-04-01	-0.29484
2007-10-01	0.16278
2009-01-01	-0.18140
2009-07-01	-0.40000
2010-04-01	-0.01450
2011-04-01	-0.60000
2012-01-01	1.43421
2012-04-01	0.25136
2012-10-01	-0.26457
2013-01-01	0.62679
2014-07-01	-0.70000
2015-01-01	0.03272