Quarter	Billions of US Dollars
1993-07-01	0.060
1993-10-01	0.060
1994-01-01	0.060
1994-04-01	0.060
1994-07-01	0.060
1994-10-01	0.060
1995-01-01	0.060
1995-04-01	0.060
1995-07-01	0.060
1995-10-01	0.060
1996-01-01	0.060
1996-04-01	0.060
1996-07-01	0.048
1996-10-01	0.048
1997-01-01	0.036
1997-04-01	0.036
1997-07-01	0.036
1997-10-01	0.024
1998-01-01	0.012
1998-04-01	0.012
2004-10-01	0.100
2005-01-01	0.100
2005-04-01	0.100
2005-07-01	0.100
2005-10-01	0.100
2006-01-01	0.100
2006-04-01	0.100
2006-07-01	0.100
2006-10-01	0.100
2007-01-01	0.100
2007-04-01	0.100
2007-07-01	0.100
2007-10-01	0.100
2008-01-01	0.100
2008-04-01	0.100
2008-07-01	0.100
2008-10-01	0.100
2009-01-01	0.100
2009-04-01	0.100
2009-07-01	0.100
2009-10-01	0.100
2010-01-01	0.100
2010-04-01	0.100
2010-07-01	0.100
2010-10-01	0.100
2011-01-01	0.100
2011-04-01	0.100
2011-07-01	0.100
2011-10-01	0.100
2012-01-01	0.300
2012-04-01	0.300
2012-07-01	0.300
2012-10-01	0.300
2013-01-01	0.300
2013-04-01	0.400
2013-07-01	0.400
2013-10-01	0.400
2014-01-01	0.400
2014-04-01	0.400
2014-07-01	0.400
2014-10-01	0.300
2015-01-01	0.300
2015-04-01	0.300