Quarter	Billions of US Dollars
1999-07-01	0.0184
1999-10-01	0.0184
2000-01-01	0.0184
2000-04-01	0.0184
2000-07-01	0.0184
2000-10-01	0.0184
2001-01-01	0.0184
2001-04-01	0.0184
2001-07-01	0.0184
2001-10-01	0.0184
2002-01-01	0.0184
2002-04-01	0.0184
2002-07-01	0.0184
2002-10-01	0.0184
2003-01-01	0.0184
2003-04-01	0.0184
2003-07-01	0.0184
2003-10-01	0.0184
2004-01-01	0.0184
2004-04-01	0.0184
2004-07-01	0.0184
2004-10-01	0.0184
2005-01-01	0.0184
2005-04-01	0.0184
2005-07-01	0.0184
2005-10-01	0.0184
2006-01-01	0.0184
2006-04-01	0.0184
2006-07-01	0.0184
2006-10-01	0.0703
2007-01-01	0.0703
2007-04-01	0.0703
2007-07-01	0.0703
2007-10-01	0.1161
2008-01-01	0.1161
2008-04-01	0.1161
2008-07-01	0.1731
2008-10-01	0.1731
2009-01-01	0.1731
2009-04-01	0.1731
2009-07-01	0.1731
2009-10-01	0.1731
2010-01-01	0.1731
2010-04-01	0.1731
2010-07-01	0.1731
2010-10-01	0.1731
2011-01-01	0.1731
2011-04-01	0.1731
2011-07-01	0.1731
2011-10-01	0.1731
2012-01-01	0.1731
2012-04-01	0.1731
2012-07-01	0.4261
2012-10-01	0.4261
2013-01-01	0.4261
2013-04-01	0.4261
2013-07-01	0.3691
2013-10-01	0.3691
2014-01-01	0.3691
2014-04-01	0.3691
2014-07-01	0.3691
2014-10-01	0.3691
2015-01-01	0.3507
2015-04-01	0.3507