Quarter	Billions of US Dollars
1993-10-01	0.06500
1994-01-01	0.06405
1994-04-01	0.06105
1994-07-01	0.05340
1994-10-01	0.05990
1995-01-01	0.07551
1995-04-01	0.10717
1995-07-01	0.11197
1995-10-01	0.10897
1996-01-01	0.10897
1996-04-01	0.10897
1996-07-01	0.48397
1996-10-01	0.41860
1997-01-01	0.41860
1997-04-01	0.58360
1997-07-01	0.58360
1997-10-01	0.58360
1998-01-01	0.58360
1998-04-01	0.58360
1998-07-01	0.58360
1998-10-01	0.58360
1999-01-01	0.58360
1999-04-01	0.58360
1999-07-01	0.58360
1999-10-01	0.54000
2000-01-01	0.54000
2000-04-01	0.54000
2000-07-01	0.54000
2000-10-01	0.54000
2001-01-01	0.54000
2001-04-01	0.54000
2001-07-01	0.41500
2001-10-01	0.41500
2002-01-01	0.41500
2002-04-01	0.41500
2002-07-01	0.41500
2002-10-01	0.41500
2003-01-01	0.41500
2003-04-01	0.41500
2003-07-01	0.41500
2003-10-01	0.41500
2004-01-01	0.41500
2004-04-01	0.41500
2004-07-01	0.41500
2004-10-01	0.41500
2005-01-01	0.41500
2005-04-01	0.41500
2005-07-01	0.25000
2005-10-01	0.25000
2006-01-01	0.25000
2011-04-01	0.30000
2011-07-01	0.30000
2011-10-01	0.30000
2012-01-01	1.05000
2012-04-01	1.09000
2012-07-01	1.09000
2012-10-01	1.09000
2013-01-01	1.09000
2013-04-01	1.09000
2013-07-01	1.10000
2013-10-01	1.10000
2014-01-01	1.10000
2014-04-01	1.10000
2014-07-01	1.87645
2014-10-01	1.82548
2015-01-01	1.79730
2015-04-01	1.81230