Quarter Billions of US Dollars 1975-04-01 0.01500 1975-07-01 0.01500 1975-10-01 0.01500 1976-01-01 0.01500 1976-04-01 0.01500 1976-07-01 0.01500 1976-10-01 0.01500 1977-01-01 0.01500 1977-04-01 0.01500 1977-07-01 0.01500 1977-10-01 0.01500 1978-01-01 0.01500 1978-04-01 0.01500 1978-07-01 0.01500 1978-10-01 0.01500 1979-01-01 0.01500 1979-04-01 0.01500 1979-07-01 0.01500 1979-10-01 0.01500 1980-01-01 0.01500 1982-04-01 0.06180 1982-07-01 0.05997 1982-10-01 0.06518 1983-01-01 0.06245 1983-04-01 0.06177 1983-07-01 0.06104 1983-10-01 0.05965 1984-01-01 0.06038 1984-04-01 0.05579 1984-07-01 0.05204 1984-10-01 0.05029 1985-01-01 0.04967 1985-04-01 0.05075 1985-07-01 0.05961 1985-10-01 0.06261 1986-01-01 0.06702 1986-04-01 0.07239 1986-07-01 0.07936 1986-10-01 0.08007 1987-01-01 0.08632 1987-04-01 0.08553 1987-07-01 0.08502 1987-10-01 0.10172 1988-01-01 0.09499 1988-04-01 0.08612 1988-07-01 0.08179 1988-10-01 0.08644 1989-01-01 0.07831 2007-10-01 1.00000 2008-01-01 1.00000 2008-04-01 1.00000 2008-07-01 1.00000 2008-10-01 1.00000 2009-01-01 1.00000 2009-04-01 1.00000 2009-07-01 1.00000 2009-10-01 1.00000 2010-01-01 1.00000 2010-04-01 1.00000 2010-07-01 1.00000 2010-10-01 1.00000 2011-01-01 1.00000 2011-04-01 1.00000 2011-07-01 1.00000 2011-10-01 1.00000 2012-01-01 1.00000 2012-04-01 1.00000 2012-07-01 1.00000 2012-10-01 1.00000 2013-01-01 1.00000 2013-04-01 1.00000 2013-07-01 1.00000 2013-10-01 3.10949 2014-01-01 3.10949 2014-04-01 3.10949 2014-07-01 3.10949 2014-10-01 3.10949 2015-01-01 3.10949 2015-04-01 3.60949