Month Index 2015=100 1996-12-01 4.66 1997-01-01 6.63 1997-02-01 28.05 1997-03-01 29.55 1997-04-01 28.48 1997-05-01 27.85 1997-06-01 28.18 1997-07-01 31.40 1997-08-01 32.58 1997-09-01 33.81 1997-10-01 34.77 1997-11-01 36.38 1997-12-01 37.18 1998-01-01 36.05 1998-02-01 36.13 1998-03-01 36.41 1998-04-01 36.58 1998-05-01 36.63 1998-06-01 36.68 1998-07-01 37.05 1998-08-01 37.13 1998-09-01 37.64 1998-10-01 37.46 1998-11-01 37.96 1998-12-01 37.74 1999-01-01 39.76 1999-02-01 40.60 1999-03-01 41.08 1999-04-01 41.13 1999-05-01 41.29 1999-06-01 42.01 1999-07-01 42.20 1999-08-01 42.70 1999-09-01 43.26 1999-10-01 43.37 1999-11-01 43.48 1999-12-01 43.51 2000-01-01 43.53 2000-02-01 43.46 2000-03-01 43.34 2000-04-01 43.25 2000-05-01 43.44 2000-06-01 43.72 2000-07-01 43.66 2000-08-01 43.66 2000-09-01 43.74 2000-10-01 44.14 2000-11-01 44.21 2000-12-01 44.27 2001-01-01 44.36 2001-02-01 44.28 2001-03-01 45.06 2001-04-01 44.93 2001-05-01 44.95 2001-06-01 44.92 2001-07-01 44.84 2001-08-01 44.90 2001-09-01 44.85 2001-10-01 44.88 2001-11-01 44.89 2001-12-01 44.92 2002-01-01 45.05 2002-02-01 45.15 2002-03-01 45.16 2002-04-01 45.16 2002-05-01 45.31 2002-06-01 45.33 2002-07-01 45.27 2002-08-01 45.21 2002-09-01 45.22 2002-10-01 45.43 2002-11-01 45.31 2002-12-01 45.86 2003-01-01 48.89 2003-02-01 49.42 2003-03-01 49.73 2003-04-01 49.95 2003-05-01 49.96 2003-06-01 50.36 2003-07-01 50.56 2003-08-01 50.77 2003-09-01 51.03 2003-10-01 51.26 2003-11-01 51.27 2003-12-01 51.31 2004-01-01 51.30 2004-02-01 51.41 2004-03-01 51.36 2004-04-01 51.37 2004-05-01 51.81 2004-06-01 51.94 2004-07-01 52.04 2004-08-01 52.44 2004-09-01 52.94 2004-10-01 53.09 2004-11-01 53.37 2004-12-01 54.47 2005-01-01 56.76 2005-02-01 58.23 2005-03-01 59.06 2005-04-01 59.36 2005-05-01 59.82 2005-06-01 59.91 2005-07-01 60.13 2005-08-01 60.62 2005-09-01 60.83 2005-10-01 61.22 2005-11-01 61.39 2005-12-01 64.68 2006-01-01 70.08 2006-02-01 72.14 2006-03-01 72.82 2006-04-01 73.15 2006-05-01 73.38 2006-06-01 73.46 2006-07-01 73.73 2006-08-01 74.02 2006-09-01 74.28 2006-10-01 74.65 2006-11-01 74.77 2006-12-01 74.93 2007-01-01 75.44 2007-02-01 76.00 2007-03-01 76.15 2007-04-01 75.86 2007-05-01 76.07 2007-06-01 76.35 2007-07-01 76.64 2007-08-01 77.23 2007-09-01 78.14 2007-10-01 78.92 2007-11-01 79.46 2007-12-01 80.65 2008-01-01 81.37 2008-02-01 81.23 2008-03-01 81.62 2008-04-01 82.52 2008-05-01 84.58 2008-06-01 86.40 2008-07-01 88.51 2008-08-01 89.03 2008-09-01 89.74 2008-10-01 90.47 2008-11-01 91.35 2008-12-01 92.16 2009-01-01 92.73 2009-02-01 92.69 2009-03-01 93.22 2009-04-01 92.91 2009-05-01 93.13 2009-06-01 92.95 2009-07-01 93.01 2009-08-01 93.29 2009-09-01 93.33 2009-10-01 93.11 2009-11-01 93.02 2009-12-01 93.58 2010-01-01 93.61 2010-02-01 93.09 2010-03-01 93.34 2010-04-01 93.39 2010-05-01 93.82 2010-06-01 94.90 2010-07-01 96.79 2010-08-01 97.33 2010-09-01 97.55 2010-10-01 98.16 2010-11-01 98.41 2010-12-01 97.65 2011-01-01 98.46 2011-02-01 98.53 2011-03-01 98.39 2011-04-01 98.64 2011-05-01 98.59 2011-06-01 98.52 2011-07-01 98.33 2011-08-01 98.32 2011-09-01 98.51 2011-10-01 98.55 2011-11-01 98.54 2011-12-01 98.91 2012-01-01 98.96 2012-02-01 98.72 2012-03-01 98.74 2012-04-01 98.56 2012-05-01 98.75 2012-06-01 99.26 2012-07-01 98.87 2012-08-01 99.17 2012-09-01 99.25 2012-10-01 99.23 2012-11-01 99.45 2012-12-01 99.37 2013-01-01 99.62 2013-02-01 98.93 2013-03-01 99.57 2013-04-01 99.33 2013-05-01 99.29 2013-06-01 99.64 2013-07-01 99.94 2013-08-01 100.10 2013-09-01 100.15 2013-10-01 100.03 2013-11-01 100.31 2013-12-01 99.85 2014-01-01 100.39 2014-02-01 100.34 2014-03-01 100.25 2014-04-01 100.02 2014-05-01 99.55 2014-06-01 99.66 2014-07-01 99.67 2014-08-01 100.07 2014-09-01 100.01 2014-10-01 99.97 2014-11-01 99.52 2014-12-01 99.38 2015-01-01 99.98 2015-02-01 99.51 2015-03-01 99.44 2015-04-01 99.82 2015-05-01 99.97 2015-06-01 100.28 2015-07-01 99.93 2015-08-01 100.43 2015-09-01 100.04 2015-10-01 100.13 2015-11-01 100.35 2015-12-01 100.12 2016-01-01 100.65 2016-02-01 100.60 2016-03-01 100.46 2016-04-01 100.06 2016-05-01 99.60 2016-06-01 100.02 2016-07-01 99.42 2016-08-01 99.58 2016-09-01 99.64 2016-10-01 99.96 2016-11-01 99.73 2016-12-01 99.48 2017-01-01 99.74 2017-02-01 99.33 2017-03-01 99.66 2017-04-01 99.71 2017-05-01 99.40 2017-06-01 99.58 2017-07-01 99.69 2017-08-01 99.84 2017-09-01 100.00 2017-10-01 100.01 2017-11-01 100.26 2017-12-01 100.01 2018-01-01 100.34 2018-02-01 100.67 2018-03-01 100.03 2018-04-01 101.08 2018-05-01 100.89 2018-06-01 100.86 2018-07-01 101.09 2018-08-01 100.46 2018-09-01 101.00 2018-10-01 100.78