Month Index source base 1979-01-01 27.0 1979-02-01 27.0 1979-03-01 27.2 1979-04-01 27.2 1979-05-01 27.3 1979-06-01 27.5 1979-07-01 28.0 1979-08-01 27.8 1979-09-01 27.6 1979-10-01 27.7 1979-11-01 28.0 1979-12-01 28.0 1980-01-01 28.0 1980-02-01 28.2 1980-03-01 28.5 1980-04-01 29.1 1980-05-01 29.3 1980-06-01 29.7 1980-07-01 30.1 1980-08-01 30.7 1980-09-01 30.8 1980-10-01 31.1 1980-11-01 31.6 1980-12-01 31.8 1981-01-01 32.7 1981-02-01 33.0 1981-03-01 33.3 1981-04-01 33.7 1981-05-01 33.8 1981-06-01 34.3 1981-07-01 36.1 1981-08-01 36.1 1981-09-01 36.3 1981-10-01 36.3 1981-11-01 36.6 1981-12-01 36.8 1982-01-01 37.7 1982-02-01 38.2 1982-03-01 38.6 1982-04-01 38.6 1982-05-01 38.5 1982-06-01 39.3 1982-07-01 41.0 1982-08-01 40.9 1982-09-01 40.5 1982-10-01 40.9 1982-11-01 41.5 1982-12-01 41.6 1983-01-01 41.8 1983-02-01 42.0 1983-03-01 42.0 1983-04-01 42.1 1983-05-01 42.3 1983-06-01 42.8 1983-07-01 43.6 1983-08-01 43.3 1983-09-01 43.5 1983-10-01 43.6 1983-11-01 44.0 1983-12-01 44.1 1984-01-01 44.4 1984-02-01 44.8 1984-03-01 45.0 1984-04-01 45.3 1984-05-01 45.3 1984-06-01 45.8 1984-07-01 46.7 1984-08-01 46.5 1984-09-01 46.4 1984-10-01 46.6 1984-11-01 46.9 1984-12-01 47.0 1985-01-01 47.2 1985-02-01 47.5 1985-03-01 47.8 1985-04-01 48.1 1985-05-01 48.4 1985-06-01 48.9 1985-07-01 49.6 1985-08-01 49.4 1985-09-01 49.7 1985-10-01 49.6 1985-11-01 49.9 1985-12-01 50.0 1986-01-01 50.6 1986-02-01 51.3 1986-03-01 51.5 1986-04-01 52.0 1986-05-01 52.0 1986-06-01 53.1 1986-07-01 54.0 1986-08-01 54.6 1986-09-01 54.9 1986-10-01 55.1 1986-11-01 55.4 1986-12-01 55.5 1987-01-01 56.2 1987-02-01 56.5 1987-03-01 56.5 1987-04-01 56.4 1987-05-01 56.5 1987-06-01 56.9 1987-07-01 57.7 1987-08-01 58.2 1987-09-01 58.2 1987-10-01 58.2 1987-11-01 58.7 1987-12-01 58.6 1988-01-01 59.8 1988-02-01 60.1 1988-03-01 60.7 1988-04-01 60.8 1988-05-01 60.6 1988-06-01 61.1 1988-07-01 61.5 1988-08-01 61.6 1988-09-01 61.5 1988-10-01 61.6 1988-11-01 61.7 1988-12-01 61.4 1989-01-01 61.8 1989-02-01 61.9 1989-03-01 61.9 1989-04-01 62.6 1989-05-01 62.6 1989-06-01 62.7 1989-07-01 63.5 1989-08-01 63.3 1989-09-01 63.4 1989-10-01 63.3 1989-11-01 63.2 1989-12-01 62.8 1990-01-01 64.0 1990-02-01 64.3 1990-03-01 64.5 1990-04-01 64.6 1990-05-01 64.6 1990-06-01 65.0 1990-07-01 65.7 1990-08-01 65.4 1990-09-01 65.2 1990-10-01 65.4 1990-11-01 65.2 1990-12-01 64.8 1991-01-01 65.0 1991-02-01 65.1 1991-03-01 65.3 1991-04-01 65.5 1991-05-01 65.6 1991-06-01 65.8 1991-07-01 66.7 1991-08-01 67.0 1991-09-01 67.0 1991-10-01 66.7 1991-11-01 66.7 1991-12-01 66.6 1992-01-01 67.1 1992-02-01 67.4 1992-03-01 67.4 1992-04-01 67.4 1992-05-01 67.5 1992-06-01 67.7 1992-07-01 67.6 1992-08-01 67.3 1992-09-01 67.0 1992-10-01 66.8 1992-11-01 66.6 1992-12-01 66.1 1993-01-01 66.5 1993-02-01 66.3 1993-03-01 66.5 1993-04-01 66.6 1993-05-01 66.4 1993-06-01 66.6 1993-07-01 67.0 1993-08-01 66.6 1993-09-01 66.8 1993-10-01 66.6 1993-11-01 66.3 1993-12-01 66.0 1994-01-01 66.4 1994-02-01 66.6 1994-03-01 67.0 1994-04-01 67.1 1994-05-01 67.2 1994-06-01 67.7 1994-07-01 67.8 1994-08-01 68.1 1994-09-01 68.3 1994-10-01 67.9 1994-11-01 67.8 1994-12-01 67.5 1995-01-01 67.9 1995-02-01 68.3 1995-03-01 68.5 1995-04-01 68.5 1995-05-01 68.6 1995-06-01 69.0 1995-07-01 69.2 1995-08-01 68.8 1995-09-01 68.7 1995-10-01 68.6 1995-11-01 68.0 1995-12-01 68.0 1996-01-01 68.1 1996-02-01 68.2 1996-03-01 68.4 1996-04-01 68.7 1996-05-01 69.2 1996-06-01 69.7 1996-07-01 71.0 1996-08-01 70.6 1996-09-01 70.4 1996-10-01 70.4 1996-11-01 70.1 1996-12-01 70.1 1997-01-01 70.5 1997-02-01 70.7 1997-03-01 70.9 1997-04-01 71.4 1997-05-01 71.9 1997-06-01 72.4 1997-07-01 72.7 1997-08-01 72.8 1997-09-01 72.6 1997-10-01 72.5 1997-11-01 72.4 1997-12-01 72.2 1998-01-01 73.2 1998-02-01 73.5 1998-03-01 74.0 1998-04-01 74.5 1998-05-01 74.8 1998-06-01 75.7 1998-07-01 76.6 1998-08-01 76.1 1998-09-01 76.5 1998-10-01 76.3 1998-11-01 76.7 1998-12-01 76.5 1999-01-01 76.7 1999-02-01 76.9 1999-03-01 76.9 1999-04-01 77.3 1999-05-01 77.6 1999-06-01 78.3 1999-07-01 78.3 1999-08-01 77.6 1999-09-01 77.5 1999-10-01 77.7 1999-11-01 77.9 1999-12-01 77.5 2000-01-01 77.6 2000-02-01 78.4 2000-03-01 78.6 2000-04-01 78.4 2000-05-01 79.0 2000-06-01 79.7 2000-07-01 79.7 2000-08-01 79.4 2000-09-01 79.5 2000-10-01 79.0 2000-11-01 79.2 2000-12-01 79.4 2001-01-01 80.0 2001-02-01 79.9 2001-03-01 80.2 2001-04-01 80.4 2001-05-01 81.4 2001-06-01 82.1 2001-07-01 74.7 2001-08-01 74.4 2001-09-01 74.1 2001-10-01 74.1 2001-11-01 74.1 2001-12-01 74.4 2002-01-01 75.1 2002-02-01 75.3 2002-03-01 75.7 2002-04-01 75.7 2002-05-01 76.0 2002-06-01 76.3 2002-07-01 77.1 2002-08-01 76.6 2002-09-01 76.8 2002-10-01 76.2 2002-11-01 76.5 2002-12-01 76.6 2003-01-01 77.1 2003-02-01 77.8 2003-03-01 78.0 2003-04-01 78.2 2003-05-01 78.5 2003-06-01 79.1 2003-07-01 79.6 2003-08-01 79.1 2003-09-01 79.6 2003-10-01 79.2 2003-11-01 79.1 2003-12-01 79.3 2004-01-01 79.4 2004-02-01 79.8 2004-03-01 80.3 2004-04-01 80.4 2004-05-01 80.4 2004-06-01 80.6 2004-07-01 80.7 2004-08-01 80.2 2004-09-01 80.0 2004-10-01 79.6 2004-11-01 80.0 2004-12-01 80.3 2005-01-01 80.3 2005-02-01 81.2 2005-03-01 81.3 2005-04-01 81.4 2005-05-01 81.6 2005-06-01 82.0 2005-07-01 82.3 2005-08-01 81.7 2005-09-01 81.7 2005-10-01 81.4 2005-11-01 81.2 2005-12-01 81.0 2006-01-01 81.5 2006-02-01 82.0 2006-03-01 82.0 2006-04-01 82.2 2006-05-01 82.7 2006-06-01 83.0 2006-07-01 83.2 2006-08-01 82.4 2006-09-01 83.2 2006-10-01 82.7 2006-11-01 83.1 2006-12-01 82.7 2007-01-01 83.0 2007-02-01 83.9 2007-03-01 84.2 2007-04-01 84.2 2007-05-01 84.6 2007-06-01 85.1 2007-07-01 85.7 2007-08-01 85.7 2007-09-01 85.7 2007-10-01 84.7 2007-11-01 85.3 2007-12-01 85.4 2008-01-01 85.2 2008-02-01 87.0 2008-03-01 87.3 2008-04-01 88.0 2008-05-01 88.5 2008-06-01 87.8 2008-07-01 89.8 2008-08-01 89.0 2008-09-01 89.4 2008-10-01 89.5 2008-11-01 89.1 2008-12-01 89.7 2009-01-01 89.4 2009-02-01 91.7 2009-03-01 91.9 2009-04-01 91.9 2009-05-01 92.2 2009-06-01 92.8 2009-07-01 92.9 2009-08-01 92.0 2009-09-01 93.0 2009-10-01 91.9 2009-11-01 92.6 2009-12-01 92.3 2010-01-01 91.6 2010-02-01 92.2 2010-03-01 92.2 2010-04-01 92.7 2010-05-01 92.9 2010-06-01 91.8 2010-07-01 92.6 2010-08-01 92.4 2010-09-01 92.7 2010-10-01 92.1 2010-11-01 91.9 2010-12-01 91.8 2011-01-01 90.1 2011-02-01 92.5 2011-03-01 92.0 2011-04-01 91.7 2011-05-01 92.2 2011-06-01 91.7 2011-07-01 93.7 2011-08-01 92.2 2011-09-01 93.2 2011-10-01 92.7 2011-11-01 92.2 2011-12-01 91.7 2012-01-01 92.0 2012-02-01 93.7 2012-03-01 94.0 2012-04-01 92.7 2012-05-01 94.0 2012-06-01 93.7 2012-07-01 94.4 2012-08-01 93.1 2012-09-01 94.0 2012-10-01 93.1 2012-11-01 93.1 2012-12-01 91.5 2013-01-01 92.1 2013-02-01 92.7 2013-03-01 92.2 2013-04-01 93.2 2013-05-01 94.0 2013-06-01 94.2 2013-07-01 96.5 2013-08-01 95.8 2013-09-01 95.6 2013-10-01 95.4 2013-11-01 95.4 2013-12-01 94.0 2014-01-01 94.9 2014-02-01 96.2 2014-03-01 97.0 2014-04-01 96.1 2014-05-01 97.2 2014-06-01 96.7 2014-07-01 99.7 2014-08-01 98.5 2014-09-01 97.9 2014-10-01 97.7 2014-11-01 97.9 2014-12-01 96.3 2015-01-01 97.2 2015-02-01 99.1 2015-03-01 97.7 2015-04-01 98.1 2015-05-01 99.7 2015-06-01 100.7 2015-07-01 102.6 2015-08-01 101.7 2015-09-01 101.9 2015-10-01 100.9 2015-11-01 101.6 2015-12-01 98.6 2016-01-01 98.9 2016-02-01 102.3 2016-03-01 99.0 2016-04-01 102.0 2016-05-01 102.1 2016-06-01 103.1 2016-07-01 106.1 2016-08-01 105.0 2016-09-01 104.6 2016-10-01 104.1 2016-11-01 103.2 2016-12-01 100.3 2017-01-01 100.9 2017-02-01 102.4 2017-03-01 102.0 2017-04-01 99.9 2017-05-01 102.8 2017-06-01 104.0 2017-07-01 106.8 2017-08-01 103.2 2017-09-01 102.6 2017-10-01 102.9 2017-11-01 102.4 2017-12-01 100.9 2018-01-01 103.5 2018-02-01 105.5 2018-03-01 103.6 2018-04-01 103.8 2018-05-01 103.9 2018-06-01 104.4 2018-07-01 108.2 2018-08-01 106.5 2018-09-01 106.1 2018-10-01 105.3