Quarter Billions of US Dollars 1973-10-01 0.02500 1974-01-01 0.02500 1974-04-01 0.02500 1974-07-01 0.02500 1974-10-01 0.02500 1975-01-01 0.02500 1975-04-01 0.02500 1975-07-01 0.02500 1975-10-01 0.02500 1976-01-01 0.02500 1976-04-01 0.02500 1976-07-01 0.02500 1976-10-01 0.02500 1977-01-01 0.02500 1977-04-01 0.02500 1977-07-01 0.02500 1977-10-01 0.02500 1978-01-01 0.02500 1978-04-01 0.02500 1978-07-01 0.02500 1978-10-01 0.02500 1979-01-01 0.02500 1979-04-01 0.02500 1979-07-01 0.02500 1997-01-01 0.22500 1997-04-01 0.22500 1997-07-01 0.22500 1997-10-01 0.22500 1998-01-01 0.22500 1998-04-01 0.22500 1998-07-01 0.22500 1998-10-01 0.22500 1999-01-01 0.22500 1999-04-01 0.22500 1999-07-01 0.22500 1999-10-01 0.22500 2000-01-01 0.22500 2000-04-01 0.22500 2000-07-01 0.22500 2000-10-01 0.22500 2001-01-01 0.22500 2001-04-01 0.22500 2001-07-01 0.22500 2001-10-01 0.22500 2004-04-01 0.25000 2004-07-01 0.25000 2004-10-01 0.25000 2005-01-01 0.25000 2005-04-01 0.25000 2005-07-01 0.25000 2005-10-01 0.25000 2006-01-01 0.25000 2006-04-01 0.25000 2006-07-01 0.25000 2006-10-01 1.20000 2007-01-01 1.20000 2007-04-01 1.21500 2007-07-01 1.21500 2007-10-01 1.21500 2008-01-01 1.21500 2008-04-01 1.21500 2008-07-01 1.21500 2008-10-01 1.21500 2009-01-01 1.21500 2009-04-01 0.96500 2009-07-01 0.96500 2009-10-01 0.96500 2010-01-01 0.96500 2010-04-01 0.96500 2010-07-01 0.96500 2010-10-01 1.28500 2011-01-01 1.28500 2011-04-01 1.28500 2011-07-01 1.28500 2011-10-01 1.26000 2012-01-01 1.28601 2012-04-01 1.27101 2012-07-01 1.27101 2012-10-01 1.29702 2013-01-01 1.77101 2013-04-01 1.77101 2013-07-01 1.77101 2013-10-01 2.12101 2014-01-01 2.12101 2014-04-01 2.12101 2014-07-01 2.12101 2014-10-01 2.80101 2015-01-01 2.80101 2015-04-01 4.10101