Quarter	Billions of US Dollars
1993-07-01	0.95500
1994-01-01	0.68640
1995-04-01	0.07710
1996-01-01	0.39489
1996-04-01	0.15494
1996-10-01	0.47100
1997-01-01	0.34202
1997-04-01	1.01558
1997-07-01	0.32738
1998-01-01	0.17924
1998-04-01	0.17862
1998-07-01	0.02517
1998-10-01	0.49701
1999-01-01	1.14463
1999-04-01	1.09264
2000-01-01	0.53647
2000-04-01	0.09004
2001-10-01	0.89346
2002-01-01	1.24435
2002-10-01	1.08316
2003-04-01	0.42973
2003-07-01	1.54368
2003-10-01	0.41633
2004-01-01	0.00050
2004-04-01	0.21438
2004-07-01	0.60457
2005-01-01	0.57640
2005-04-01	0.17970
2005-10-01	0.55846
2006-01-01	0.13925
2006-07-01	0.11824
2007-04-01	1.92468
2007-07-01	0.30960
2007-10-01	0.15123
2008-04-01	1.07386
2008-07-01	0.08001
2008-10-01	2.05948
2009-01-01	0.06310
2009-04-01	0.96834
2009-07-01	1.35393
2009-10-01	0.74111
2010-01-01	0.23822
2010-04-01	0.62224
2010-10-01	0.48936
2011-04-01	0.10729
2012-04-01	0.11037
2012-07-01	0.49267
2012-10-01	0.00020
2013-04-01	0.06670
2013-07-01	0.61140
2013-10-01	0.96625
2014-01-01	0.16676
2014-04-01	0.44969
2014-07-01	0.06966
2014-10-01	1.24305
2015-01-01	0.17148
2015-04-01	0.54964