Month Index source base 1979-01-01 20.4 1979-02-01 20.5 1979-03-01 20.5 1979-04-01 20.5 1979-05-01 20.6 1979-06-01 20.7 1979-07-01 20.7 1979-08-01 20.8 1979-09-01 21.0 1979-10-01 21.4 1979-11-01 21.3 1979-12-01 21.4 1980-01-01 22.4 1980-02-01 24.2 1980-03-01 24.1 1980-04-01 24.1 1980-05-01 24.2 1980-06-01 24.5 1980-07-01 24.0 1980-08-01 24.1 1980-09-01 24.2 1980-10-01 24.4 1980-11-01 24.7 1980-12-01 24.7 1981-01-01 25.0 1981-02-01 25.2 1981-03-01 25.5 1981-04-01 25.6 1981-05-01 25.7 1981-06-01 25.9 1981-07-01 26.1 1981-08-01 26.2 1981-09-01 26.3 1981-10-01 26.2 1981-11-01 26.2 1981-12-01 26.2 1982-01-01 26.6 1982-02-01 26.9 1982-03-01 26.9 1982-04-01 27.4 1982-05-01 27.5 1982-06-01 27.8 1982-07-01 27.9 1982-08-01 28.0 1982-09-01 28.2 1982-10-01 28.3 1982-11-01 28.5 1982-12-01 29.3 1983-01-01 29.9 1983-02-01 30.3 1983-03-01 30.6 1983-04-01 30.6 1983-05-01 30.7 1983-06-01 31.0 1983-07-01 31.1 1983-08-01 31.1 1983-09-01 31.2 1983-10-01 31.3 1983-11-01 31.8 1983-12-01 31.8 1984-01-01 32.1 1984-02-01 32.2 1984-03-01 32.5 1984-04-01 32.6 1984-05-01 32.7 1984-06-01 32.7 1984-07-01 32.8 1984-08-01 32.9 1984-09-01 33.2 1984-10-01 33.3 1984-11-01 33.3 1984-12-01 33.7 1985-01-01 34.0 1985-02-01 34.1 1985-03-01 34.4 1985-04-01 34.5 1985-05-01 34.8 1985-06-01 34.9 1985-07-01 34.9 1985-08-01 35.0 1985-09-01 35.0 1985-10-01 35.4 1985-11-01 35.6 1985-12-01 35.6 1986-01-01 36.6 1986-02-01 36.7 1986-03-01 36.8 1986-04-01 37.0 1986-05-01 38.2 1986-06-01 38.6 1986-07-01 39.7 1986-08-01 40.4 1986-09-01 41.5 1986-10-01 41.6 1986-11-01 41.8 1986-12-01 41.8 1987-01-01 43.3 1987-02-01 43.9 1987-03-01 44.0 1987-04-01 44.0 1987-05-01 44.1 1987-06-01 44.1 1987-07-01 44.7 1987-08-01 44.7 1987-09-01 45.2 1987-10-01 45.2 1987-11-01 45.3 1987-12-01 45.4 1988-01-01 45.8 1988-02-01 47.0 1988-03-01 47.2 1988-04-01 47.1 1988-05-01 47.4 1988-06-01 47.7 1988-07-01 47.7 1988-08-01 48.8 1988-09-01 49.1 1988-10-01 49.2 1988-11-01 49.2 1988-12-01 49.3 1989-01-01 50.1 1989-02-01 50.5 1989-03-01 50.5 1989-04-01 50.6 1989-05-01 50.7 1989-06-01 50.9 1989-07-01 50.8 1989-08-01 51.3 1989-09-01 51.3 1989-10-01 51.5 1989-11-01 51.5 1989-12-01 51.6 1990-01-01 51.9 1990-02-01 52.5 1990-03-01 52.6 1990-04-01 52.7 1990-05-01 52.8 1990-06-01 53.0 1990-07-01 53.1 1990-08-01 52.9 1990-09-01 53.0 1990-10-01 53.1 1990-11-01 53.1 1990-12-01 53.2 1991-01-01 53.5 1991-02-01 55.0 1991-03-01 53.7 1991-04-01 53.8 1991-05-01 53.8 1991-06-01 53.8 1991-07-01 53.8 1991-08-01 53.9 1991-09-01 54.0 1991-10-01 53.4 1991-11-01 53.5 1991-12-01 53.5 1992-01-01 53.4 1992-02-01 53.5 1992-03-01 54.1 1992-04-01 54.0 1992-05-01 54.1 1992-06-01 54.0 1992-07-01 54.0 1992-08-01 54.0 1992-09-01 54.0 1992-10-01 54.0 1992-11-01 54.1 1992-12-01 54.1 1993-01-01 53.7 1993-02-01 54.7 1993-03-01 55.0 1993-04-01 55.0 1993-05-01 55.0 1993-06-01 55.0 1993-07-01 54.9 1993-08-01 55.0 1993-09-01 55.0 1993-10-01 55.0 1993-11-01 55.1 1993-12-01 55.1 1994-01-01 55.1 1994-02-01 55.8 1994-03-01 55.9 1994-04-01 56.2 1994-05-01 56.3 1994-06-01 56.4 1994-07-01 56.4 1994-08-01 56.7 1994-09-01 56.7 1994-10-01 57.4 1994-11-01 57.4 1994-12-01 57.5 1995-01-01 57.6 1995-02-01 57.8 1995-03-01 58.2 1995-04-01 58.3 1995-05-01 58.4 1995-06-01 58.3 1995-07-01 58.4 1995-08-01 58.6 1995-09-01 58.8 1995-10-01 59.3 1995-11-01 59.4 1995-12-01 59.4 1996-01-01 59.4 1996-02-01 59.8 1996-03-01 59.9 1996-04-01 59.7 1996-05-01 59.8 1996-06-01 59.8 1996-07-01 59.8 1996-08-01 60.0 1996-09-01 60.0 1996-10-01 60.0 1996-11-01 60.0 1996-12-01 60.1 1997-01-01 60.1 1997-02-01 60.5 1997-03-01 60.6 1997-04-01 60.9 1997-05-01 61.0 1997-06-01 61.1 1997-07-01 61.5 1997-08-01 61.8 1997-09-01 61.9 1997-10-01 62.1 1997-11-01 62.2 1997-12-01 62.3 1998-01-01 63.2 1998-02-01 64.0 1998-03-01 64.2 1998-04-01 64.1 1998-05-01 64.2 1998-06-01 64.2 1998-07-01 64.8 1998-08-01 65.0 1998-09-01 65.1 1998-10-01 65.2 1998-11-01 65.3 1998-12-01 65.3 1999-01-01 65.8 1999-02-01 66.8 1999-03-01 66.9 1999-04-01 66.9 1999-05-01 66.9 1999-06-01 66.9 1999-07-01 67.0 1999-08-01 67.2 1999-09-01 67.4 1999-10-01 67.5 1999-11-01 67.4 1999-12-01 67.4 2000-01-01 67.5 2000-02-01 67.9 2000-03-01 68.3 2000-04-01 68.4 2000-05-01 68.6 2000-06-01 68.7 2000-07-01 69.0 2000-08-01 69.3 2000-09-01 69.5 2000-10-01 69.7 2000-11-01 69.9 2000-12-01 70.1 2001-01-01 70.7 2001-02-01 71.7 2001-03-01 71.8 2001-04-01 71.8 2001-05-01 71.9 2001-06-01 72.0 2001-07-01 72.2 2001-08-01 71.8 2001-09-01 72.1 2001-10-01 72.6 2001-11-01 72.7 2001-12-01 72.8 2002-01-01 73.6 2002-02-01 73.6 2002-03-01 73.7 2002-04-01 73.9 2002-05-01 74.0 2002-06-01 74.1 2002-07-01 74.3 2002-08-01 74.0 2002-09-01 74.1 2002-10-01 74.7 2002-11-01 74.8 2002-12-01 74.8 2003-01-01 76.0 2003-02-01 76.4 2003-03-01 76.4 2003-04-01 76.7 2003-05-01 76.7 2003-06-01 76.7 2003-07-01 77.3 2003-08-01 76.6 2003-09-01 76.8 2003-10-01 76.9 2003-11-01 77.0 2003-12-01 77.1 2004-01-01 77.5 2004-02-01 77.3 2004-03-01 77.3 2004-04-01 77.4 2004-05-01 77.1 2004-06-01 77.1 2004-07-01 77.4 2004-08-01 77.3 2004-09-01 77.3 2004-10-01 77.6 2004-11-01 77.6 2004-12-01 77.7 2005-01-01 78.4 2005-02-01 78.7 2005-03-01 78.8 2005-04-01 78.8 2005-05-01 78.8 2005-06-01 78.7 2005-07-01 78.8 2005-08-01 78.9 2005-09-01 78.9 2005-10-01 78.9 2005-11-01 78.9 2005-12-01 79.0 2006-01-01 77.4 2006-02-01 77.6 2006-03-01 77.8 2006-04-01 77.8 2006-05-01 77.8 2006-06-01 77.9 2006-07-01 78.1 2006-08-01 78.1 2006-09-01 78.3 2006-10-01 78.3 2006-11-01 78.4 2006-12-01 78.5 2007-01-01 78.9 2007-02-01 79.1 2007-03-01 79.2 2007-04-01 79.3 2007-05-01 79.5 2007-06-01 79.5 2007-07-01 79.6 2007-08-01 79.7 2007-09-01 79.9 2007-10-01 79.9 2007-11-01 80.1 2007-12-01 80.4 2008-01-01 80.8 2008-02-01 81.4 2008-03-01 81.8 2008-04-01 82.0 2008-05-01 82.2 2008-06-01 82.3 2008-07-01 82.7 2008-08-01 82.8 2008-09-01 83.0 2008-10-01 83.2 2008-11-01 83.4 2008-12-01 83.5 2009-01-01 84.1 2009-02-01 84.8 2009-03-01 85.0 2009-04-01 85.4 2009-05-01 85.6 2009-06-01 85.7 2009-07-01 85.9 2009-08-01 86.0 2009-09-01 86.1 2009-10-01 86.5 2009-11-01 86.6 2009-12-01 86.7 2010-01-01 87.3 2010-02-01 87.8 2010-03-01 87.9 2010-04-01 88.1 2010-05-01 88.1 2010-06-01 88.2 2010-07-01 88.7 2010-08-01 89.0 2010-09-01 88.6 2010-10-01 89.1 2010-11-01 89.2 2010-12-01 89.3 2011-01-01 89.9 2011-02-01 90.1 2011-03-01 90.1 2011-04-01 90.5 2011-05-01 90.8 2011-06-01 90.9 2011-07-01 91.1 2011-08-01 91.2 2011-09-01 91.2 2011-10-01 91.7 2011-11-01 91.8 2011-12-01 91.8 2012-01-01 93.1 2012-02-01 93.3 2012-03-01 93.4 2012-04-01 93.7 2012-05-01 94.0 2012-06-01 93.9 2012-07-01 94.1 2012-08-01 94.2 2012-09-01 94.3 2012-10-01 94.4 2012-11-01 94.5 2012-12-01 94.6 2013-01-01 95.0 2013-02-01 95.0 2013-03-01 95.4 2013-04-01 95.6 2013-05-01 95.6 2013-06-01 95.6 2013-07-01 95.9 2013-08-01 95.8 2013-09-01 95.7 2013-10-01 96.2 2013-11-01 96.2 2013-12-01 96.4 2014-01-01 97.1 2014-02-01 97.4 2014-03-01 97.6 2014-04-01 97.8 2014-05-01 98.2 2014-06-01 98.1 2014-07-01 98.3 2014-08-01 98.4 2014-09-01 98.4 2014-10-01 98.5 2014-11-01 98.6 2014-12-01 98.7 2015-01-01 99.3 2015-02-01 99.6 2015-03-01 99.6 2015-04-01 99.5 2015-05-01 99.5 2015-06-01 100.0 2015-07-01 99.9 2015-08-01 100.0 2015-09-01 100.5 2015-10-01 100.4 2015-11-01 100.6 2015-12-01 101.0 2016-01-01 101.1 2016-02-01 101.5 2016-03-01 101.5 2016-04-01 101.6 2016-05-01 101.6 2016-06-01 101.9 2016-07-01 102.2 2016-08-01 102.3 2016-09-01 102.5 2016-10-01 102.4 2016-11-01 102.4 2016-12-01 102.3 2017-01-01 103.1 2017-02-01 103.1 2017-03-01 103.7 2017-04-01 104.2 2017-05-01 103.9 2017-06-01 104.2 2017-07-01 104.4 2017-08-01 104.4 2017-09-01 104.3 2017-10-01 104.8 2017-11-01 104.5 2017-12-01 104.4 2018-01-01 105.4 2018-02-01 105.5 2018-03-01 105.6 2018-04-01 105.6 2018-05-01 105.5 2018-06-01 105.6 2018-07-01 105.7 2018-08-01 105.9 2018-09-01 105.8 2018-10-01 105.8