1961-01 1961-02 30.3 1961-03 31.8 1961-04 1961-05 30.5 1961-06 1961-07 31.7 1961-08 31.3 1961-09 1961-10 31.7 1961-11 31.0 1961-12 31.5 1962-01 1962-02 31.3 1962-03 31.1 1962-04 1962-05 31.3 1962-06 30.9 1962-07 1962-08 31.3 1962-09 1962-10 31.8 1962-11 1962-12 32.0 1963-01 1963-02 32.1 1963-03 1963-04 32.2 1963-05 32.0 1963-06 1963-07 32.9 1963-08 33.1 1963-09 32.8 1963-10 33.2 1963-11 33.0 1963-12 1964-01 33.0 1964-02 31.9 1964-03 32.8 1964-04 32.9 1964-05 32.6 1964-06 32.6 1964-07 32.8 1964-08 33.2 1964-09 32.7 1964-10 32.9 1964-11 33.2 1964-12 33.2 1965-01 33.1 1965-02 33.0 1965-03 33.1 1965-04 33.3 1965-05 33.4 1965-06 32.0 1965-07 31.8 1965-08 32.4 1965-09 33.2 1965-10 33.3 1965-11 32.9 1965-12 1966-01 32.2 1966-02 32.5 1966-03 31.1 1966-04 31.8 1966-05 32.6 1966-06 32.7 1966-07 32.7 1966-08 32.7 1966-09 33.0 1966-10 33.4 1966-11 32.8 1966-12 32.7 1967-01 33.1 1967-02 33.2 1967-03 33.3 1967-04 33.0 1967-05 33.5 1967-06 32.6 1967-07 32.8 1967-08 32.9 1967-09 33.0 1967-10 33.2 1967-11 33.1 1967-12 33.7 1968-01 1968-02 32.4 1968-03 33.2 1968-04 32.4 1968-05 32.6 1968-06 33.0 1968-07 33.1 1968-08 33.3 1968-09 33.3 1968-10 33.3 1968-11 33.1 1968-12 1969-01 33.1 1969-02 33.2 1969-03 33.2 1969-04 32.2 1969-05 31.8 1969-06 31.3 1969-07 31.8 1969-08 31.5 1969-09 32.4 1969-10 32.7 1969-11 32.5 1969-12 32.9 1970-01 32.3 1970-02 32.2 1970-03 32.3 1970-04 32.6 1970-05 32.3 1970-06 33.1 1970-07 33.5 1970-08 33.6 1970-09 33.3 1970-10 33.1 1970-11 32.4 1970-12 32.4 1971-01 32.3 1971-02 32.2 1971-03 32.4 1971-04 32.1 1971-05 32.3 1971-06 33.2 1971-07 33.0 1971-08 33.7 1971-09 32.9 1971-10 33.1 1971-11 33.3 1971-12 33.3 1972-01 33.0 1972-02 33.0 1972-03 33.2 1972-04 32.7 1972-05 33.2 1972-06 33.1 1972-07 33.1 1972-08 33.2 1972-09 33.5 1972-10 33.0 1972-11 33.0 1972-12 32.3 1973-01 32.7 1973-02 32.7 1973-03 33.0 1973-04 32.7 1973-05 33.3 1973-06 33.1 1973-07 33.1 1973-08 33.1 1973-09 33.3 1973-10 33.3 1973-11 33.2 1973-12 33.4 1974-01 33.4 1974-02 33.2 1974-03 33.2 1974-04 33.1 1974-05 33.1 1974-06 32.4 1974-07 32.9 1974-08 33.3 1974-09 33.0 1974-10 33.1 1974-11 33.0 1974-12 33.3 1975-01 32.9 1975-02 32.9 1975-03 33.0 1975-04 32.1 1975-05 32.6 1975-06 33.5 1975-07 32.2 1975-08 32.3 1975-09 30.8 1975-10 31.3 1975-11 31.1 1975-12 30.9 1976-01 31.2 1976-02 30.5 1976-03 31.2 1976-04 30.8 1976-05 30.7 1976-06 30.6 1976-07 30.7 1976-08 30.9 1976-09 30.5 1976-10 30.6 1976-11 30.2 1976-12 30.3 1977-01 30.2 1977-02 30.2 1977-03 29.7 1977-04 29.7 1977-05 31.4 1977-06 31.2 1977-07 33.2 1977-08 30.2 1977-09 30.4 1977-10 29.6 1977-11 30.6 1977-12 30.2 1978-01 30.3 1978-02 29.8 1978-03 30.2 1978-04 30.1 1978-05 29.6 1978-06 30.8 1978-07 30.4 1978-08 30.4 1978-09 30.2 1978-10 29.8 1978-11 30.6 1978-12 30.1 1979-01 30.0 1979-02 29.7 1979-03 29.1 1979-04 29.9 1979-05 29.6 1979-06 30.4 1979-07 29.8 1979-08 31.2 1979-09 30.8 1979-10 30.6 1979-11 31.0 1979-12 29.9 1980-01 31.6 1980-02 30.6 1980-03 31.6 1980-04 31.4 1980-05 32.2 1980-06 31.9 1980-07 32.5 1980-08 33.0 1980-09 33.0 1980-10 33.1 1980-11 32.9 1980-12 33.1 1981-01 32.7 1981-02 33.2 1981-03 33.2 1981-04 33.1 1981-05 32.5 1981-06 32.5 1981-07 33.1 1981-08 33.1 1981-09 33.0 1981-10 32.6 1981-11 31.2 1981-12 30.9 1982-01 31.1 1982-02 31.3 1982-03 31.5 1982-04 30.6 1982-05 30.7 1982-06 30.7 1982-07 30.4 1982-08 31.5 1982-09 30.8 1982-10 30.7 1982-11 31.6 1982-12 31.7 1983-01 31.1 1983-02 30.6 1983-03 31.3 1983-04 31.8 1983-05 31.0 1983-06 31.1 1983-07 31.3 1983-08 31.8 1983-09 31.5 1983-10 31.4 1983-11 31.8 1983-12 31.4 1984-01 31.7 1984-02 31.3 1984-03 31.5 1984-04 31.6 1984-05 31.7 1984-06 32.0 1984-07 32.0 1984-08 32.4 1984-09 33.0 1984-10 33.0 1984-11 32.2 1984-12 31.6 1985-01 32.3 1985-02 31.0 1985-03 31.5 1985-04 31.5 1985-05 32.3 1985-06 32.9 1985-07 32.5 1985-08 32.6 1985-09 33.2 1985-10 33.0 1985-11 32.3 1985-12 33.0 1986-01 33.0 1986-02 33.1 1986-03 32.5 1986-04 32.0 1986-05 32.2 1986-06 32.7 1986-07 32.6 1986-08 33.4 1986-09 33.3 1986-10 33.3 1986-11 32.3 1986-12 32.0 1987-01 30.7 1987-02 31.7 1987-03 30.8 1987-04 31.1 1987-05 31.0 1987-06 31.3 1987-07 31.5 1987-08 31.0 1987-09 31.3 1987-10 31.6 1987-11 32.0 1987-12 31.4 1988-01 31.3 1988-02 31.7 1988-03 31.0 1988-04 31.4 1988-05 31.7 1988-06 31.8 1988-07 32.2 1988-08 32.5 1988-09 32.8 1988-10 32.5 1988-11 32.7 1988-12 32.8 1989-01 32.7 1989-02 32.9 1989-03 32.8 1989-04 33.0 1989-05 33.2 1989-06 33.1 1989-07 33.1 1989-08 33.3 1989-09 33.3 1989-10 31.8 1989-11 31.4 1989-12 31.2 1990-01 31.3 1990-02 31.6 1990-03 31.2 1990-04 31.1 1990-05 31.5 1990-06 31.4 1990-07 31.3 1990-08 31.7 1990-09 31.6 1990-10 31.8 1990-11 31.4 1990-12 32.3 1991-01 32.3 1991-02 31.6 1991-03 31.7 1991-04 31.3 1991-05 32.0 1991-06 32.3 1991-07 32.3 1991-08 32.6 1991-09 33.1 1991-10 33.2 1991-11 33.1 1991-12 32.9 1992-01 32.9 1992-02 33.2 1992-03 1992-04 32.8 1992-05 32.8 1992-06 32.8 1992-07 33.1 1992-08 33.2 1992-09 33.5 1992-10 32.6 1992-11 33.0 1992-12 33.2 1993-01 1993-02 1993-03 1993-04 31.4 1993-05 32.2 1993-06 32.1 1993-07 32.7 1993-08 32.8 1993-09 32.8 1993-10 32.8 1993-11 1993-12 1994-01 33.0 1994-02 32.9 1994-03 33.2 1994-04 32.9 1994-05 1994-06 1994-07 33.1 1994-08 33.2 1994-09 1994-10 1994-11 1994-12 1995-01 1995-02 1995-03 1995-04 32.2 1995-05 32.2 1995-06 32.4 1995-07 32.5 1995-08 33.2 1995-09 1995-10 1995-11 32.6 1995-12 32.4 1996-01 32.6 1996-02 1996-03 1996-04 33.1 1996-05 33.2 1996-06 1996-07 33.2 1996-08 1996-09 1996-10 1996-11 32.5 1996-12 1997-01 1997-02 1997-03 32.9 1997-04 32.7 1997-05 33.1 1997-06 32.8 1997-07 32.9 1997-08 32.6 1997-09 33.2 1997-10 33.2 1997-11 33.2 1997-12 32.9 1998-01 32.9 1998-02 33.1 1998-03 33.3 1998-04 1998-05 1998-06 32.1 1998-07 32.0 1998-08 32.6 1998-09 32.8 1998-10 32.5 1998-11 32.2 1998-12 32.6 1999-01 32.7 1999-02 32.3 1999-03 32.6 1999-04 32.9 1999-05 33.1 1999-06 33.3 1999-07 1999-08 1999-09 1999-10 32.4 1999-11 31.2 1999-12 31.7 2000-01 32.1 2000-02 32.4 2000-03 31.6 2000-04 32.1 2000-05 31.9 2000-06 32.0 2000-07 31.9 2000-08 31.6 2000-09 31.5 2000-10 32.1 2000-11 32.6 2000-12 31.9 2001-01 31.5 2001-02 31.5 2001-03 31.5 2001-04 31.9 2001-05 31.9 2001-06 32.0 2001-07 32.4 2001-08 32.7 2001-09 32.3 2001-10 32.7 2001-11 32.7 2001-12 32.8 2002-01 33.2 2002-02 33.3 2002-03 33.3 2002-04 33.2 2002-05 33.0 2002-06 33.3 2002-07 33.5 2002-08 33.3 2002-09 33.4 2002-10 33.1 2002-11 33.5 2002-12 33.4 2003-01 33.2 2003-02 33.2 2003-03 33.2 2003-04 33.6 2003-05 32.8 2003-06 32.7 2003-07 33.2 2003-08 33.2 2003-09 33.3 2003-10 33.2 2003-11 33.2 2003-12 33.4 2004-01 33.3 2004-02 33.2 2004-03 33.2 2004-04 33.5 2004-05 33.4 2004-06 33.7 2004-07 32.0 2004-08 30.8 2004-09 30.7 2004-10 31.0 2004-11 31.0 2004-12 31.4 2005-01 31.1 2005-02 31.1 2005-03 30.8 2005-04 31.0 2005-05 31.1 2005-06 31.2 2005-07 31.8 2005-08 32.0 2005-09 32.7 2005-10 33.1 2005-11 33.1 2005-12 33.0 2006-01 33.1 2006-02 33.0 2006-03 32.9 2006-04 33.3 2006-05 33.1 2006-06 33.1 2006-07 33.2 2006-08 33.5 2006-09 33.0 2006-10 32.9 2006-11 33.1 2006-12 33.3 2007-01 33.3 2007-02 32.3 2007-03 31.8 2007-04 31.4 2007-05 31.8 2007-06 32.1 2007-07 32.6 2007-08 32.3 2007-09 32.7 2007-10 32.0 2007-11 32.8 2007-12 32.9 2008-01 33.0 2008-02 33.3 2008-03 33.3 2008-04 32.6 2008-05 32.4 2008-06 32.2 2008-07 31.9 2008-08 32.0 2008-09 32.1 2008-10 31.2 2008-11 31.7 2008-12 31.7 2009-01 31.7 2009-02 31.9 2009-03 32.0 2009-04 32.0 2009-05 32.3 2009-06 32.2 2009-07 32.1 2009-08 32.6 2009-09 32.7 2009-10 33.1 2009-11 33.1 2009-12 32.5 2010-01 32.9 2010-02 33.1 2010-03 33.0 2010-04 32.5 2010-05 33.1 2010-06 33.3 2010-07 33.1 2010-08 33.0 2010-09 33.2 2010-10 33.4 2010-11 33.0 2010-12 33.1 2011-01 32.9 2011-02 32.6 2011-03 32.6 2011-04 33.0 2011-05 32.6 2011-06 33.3 2011-07 33.1 2011-08 33.1 2011-09 33.3 2011-10 33.4 2011-11 33.3 2011-12 33.3 2012-01 33.2 2012-02 32.6 2012-03 32.2 2012-04 32.7 2012-05 32.5 2012-06 33.2 2012-07 33.4 2012-08 33.1 2012-09 33.3 2012-10 33.2 2012-11 32.5 2012-12 32.3 2013-01 33.0 2013-02 33.0 2013-03 33.2 2013-04 32.7 2013-05 31.6 2013-06 32.4 2013-07 32.0 2013-08 31.5 2013-09 31.6 2013-10 32.0 2013-11 32.0 2013-12 32.0 2014-01 32.0 2014-02 32.5 2014-03 32.5 2014-04 32.5 2014-05 33.0 2014-06 32.7 2014-07 33.3 2014-08 33.0 2014-09 33.2 2014-10 33.0 2014-11 33.3 2014-12 33.2 2015-01 32.7 2015-02 32.3 2015-03 32.0 2015-04 32.1 2015-05 32.4 2015-06 32.0 2015-07 32.5 2015-08 32.6 2015-09 31.7 2015-10 32.3 2015-11 32.9 2015-12 32.5 2016-01 32.8 2016-02 32.8 2016-03 32.7 2016-04 32.5 2016-05 32.0 2016-06 32.0 2016-07 32.7 2016-08 32.8 2016-09 32.6 2016-10 32.6 2016-11 32.6 2016-12 32.6 2017-01 32.7 2017-02 32.8 2017-03 32.5 2017-04 31.8 2017-05 32.7 2017-06 32.5 2017-07 31.5 2017-08 32.0 2017-09 31.6 2017-10 31.2 2017-11 31.0 2017-12 31.2 2018-01 31.0 2018-02 31.0 2018-03 30.5 2018-04 30.5 2018-05 30.5 2018-06 30.8 2018-07 31.2 2018-08 30.7 2018-09 31.2 2018-10 31.2 2018-11 31.5 2018-12 31.2 2019-01 30.5 2019-02 30.3 2019-03 30.2 2019-04 29.7 2019-05 29.8 2019-06 29.7 2019-07 30.1 2019-08 30.7 2019-09 31.0 2019-10 30.4 2019-11 30.6 2019-12 30.7 2020-01 30.5 2020-02 30.2 2020-03 30.0 2020-04 29.5 2020-05 29.5 2020-06 29.1 2020-07 29.5 2020-08 29.5 2020-09 29.6 2020-10 33.0 2020-11 31.5 2020-12 31.5 2021-01 30.6 2021-02 30.4 2021-03 30.9 2021-04 31.1 2021-05 30.9 2021-06 30.4 2021-07 30.4 2021-08 30.4 2021-09 30.2 2021-10 29.8 2021-11 29.4 2021-12 29.5 2022-01 29.5 2022-02 31.4 2022-03 31.0 2022-04 30.0 2022-05 30.1 2022-06 30.0 2022-07 30.0 2022-08 30.3 2022-09 30.3 2022-10 30.7 2022-11 30.7 2022-12 30.2 2023-01 30.4 2023-02 30.0 2023-03 29.7 2023-04 29.8 2023-05 30.1 2023-06 30.1 2023-07 29.8 2023-08 30.5 2023-09 30.5 2023-10 30.3 2023-11 30.8 2023-12 30.8