Quarter	Billions of US Dollars
1993-10-01	0.26000
1994-01-01	0.10000
1994-10-01	0.03000
1995-04-01	0.09000
1995-10-01	0.09990
1996-01-01	0.00177
1996-04-01	0.38327
1996-07-01	0.35659
1996-10-01	0.40073
1997-01-01	0.35964
1997-04-01	0.18553
1997-07-01	0.86532
1997-10-01	0.00999
1998-01-01	0.67004
1998-04-01	-0.02824
1998-07-01	-0.29718
1998-10-01	-0.26841
1999-01-01	-0.35197
1999-04-01	0.00059
1999-07-01	0.67150
1999-10-01	0.00227
2000-01-01	0.00234
2000-04-01	-0.08776
2000-07-01	-0.00240
2000-10-01	-0.13873
2001-01-01	-0.62497
2001-04-01	0.19429
2001-07-01	-0.08561
2001-10-01	0.36596
2002-01-01	0.25000
2002-04-01	-0.20394
2002-07-01	-0.10420
2002-10-01	0.68882
2003-01-01	0.17500
2003-04-01	-0.00500
2003-07-01	0.25000
2003-10-01	-0.39000
2004-01-01	-0.30000
2004-07-01	-0.29100
2005-01-01	-0.17400
2005-10-01	-0.85000
2006-01-01	-0.10000
2006-04-01	-0.19000
2006-07-01	0.09255
2006-10-01	-0.10000
2007-01-01	0.30000
2007-10-01	-0.30000
2008-01-01	-0.23556
2008-07-01	0.35000
2009-01-01	-0.06703
2009-07-01	0.49100
2010-07-01	0.66000
2010-10-01	0.40000
2011-04-01	0.20000
2011-07-01	-0.10000
2011-10-01	-0.20300
2012-01-01	-0.10000
2012-07-01	-0.14315
2012-10-01	0.50000
2013-01-01	0.80000
2013-04-01	0.30000
2013-07-01	-0.14250
2013-10-01	0.10000
2014-04-01	1.01900
2014-07-01	-0.25000
2015-01-01	0.53500
2015-04-01	0.49950