Quarter Billions of US Dollars 1996-10-01 1.20000 1997-01-01 1.20000 1997-04-01 1.20000 1997-07-01 1.20000 1997-10-01 1.20000 1998-01-01 1.20000 1998-04-01 1.20000 1998-07-01 1.20000 1998-10-01 1.20000 1999-01-01 1.20000 1999-04-01 1.20000 1999-07-01 1.20000 1999-10-01 1.20000 2000-01-01 1.20000 2000-04-01 1.20000 2000-07-01 1.20000 2000-10-01 1.20000 2001-01-01 1.20000 2001-04-01 1.20000 2001-07-01 1.20000 2001-10-01 1.20000 2002-01-01 1.12728 2002-04-01 1.12728 2002-07-01 1.09092 2002-10-01 1.09092 2003-01-01 1.05456 2003-04-01 1.05456 2003-07-01 1.05456 2003-10-01 1.05456 2004-01-01 1.64684 2004-04-01 1.64684 2004-07-01 1.61047 2004-10-01 1.61047 2005-01-01 1.57412 2005-04-01 1.57412 2005-07-01 3.78776 2005-10-01 3.78776 2006-01-01 3.75139 2006-04-01 4.40139 2006-07-01 5.91500 2006-10-01 5.91500 2007-01-01 5.91500 2007-04-01 5.91500 2007-07-01 5.91500 2007-10-01 5.91500 2008-01-01 5.91500 2008-04-01 5.91500 2008-07-01 5.91500 2008-10-01 5.91500 2009-01-01 5.91500 2009-04-01 5.91500 2009-07-01 7.40000 2009-10-01 7.40000 2010-01-01 7.32000 2010-04-01 7.32000 2010-07-01 7.89000 2010-10-01 7.83582 2011-01-01 7.75582 2011-04-01 7.10582 2011-07-01 7.02582 2011-10-01 7.02582 2012-01-01 6.94582 2012-04-01 6.94582 2012-07-01 7.46160 2012-10-01 7.34791 2013-01-01 7.26863 2013-04-01 7.23193 2013-07-01 7.07539 2013-10-01 7.01304 2014-01-01 7.03227 2014-04-01 7.04491 2014-07-01 5.78800 2014-10-01 5.71540 2015-01-01 5.71850 2015-04-01 5.70498