Month Index 2015=100 1996-12-01 5.06 1997-01-01 6.51 1997-02-01 27.92 1997-03-01 31.03 1997-04-01 30.31 1997-05-01 31.68 1997-06-01 34.36 1997-07-01 36.15 1997-08-01 36.46 1997-09-01 37.13 1997-10-01 37.54 1997-11-01 38.22 1997-12-01 38.48 1998-01-01 38.02 1998-02-01 38.33 1998-03-01 38.63 1998-04-01 39.65 1998-05-01 40.92 1998-06-01 41.32 1998-07-01 42.16 1998-08-01 43.27 1998-09-01 43.79 1998-10-01 43.79 1998-11-01 44.17 1998-12-01 44.53 1999-01-01 45.76 1999-02-01 46.08 1999-03-01 46.35 1999-04-01 46.41 1999-05-01 46.66 1999-06-01 46.93 1999-07-01 47.31 1999-08-01 47.65 1999-09-01 48.09 1999-10-01 48.18 1999-11-01 48.29 1999-12-01 48.29 2000-01-01 48.76 2000-02-01 48.81 2000-03-01 48.75 2000-04-01 49.21 2000-05-01 49.68 2000-06-01 49.96 2000-07-01 50.24 2000-08-01 50.33 2000-09-01 50.17 2000-10-01 50.21 2000-11-01 50.21 2000-12-01 50.28 2001-01-01 50.11 2001-02-01 50.07 2001-03-01 50.55 2001-04-01 50.67 2001-05-01 50.44 2001-06-01 50.27 2001-07-01 50.49 2001-08-01 50.62 2001-09-01 50.63 2001-10-01 50.86 2001-11-01 51.13 2001-12-01 51.20 2002-01-01 52.24 2002-02-01 52.56 2002-03-01 52.71 2002-04-01 52.37 2002-05-01 52.04 2002-06-01 51.91 2002-07-01 51.54 2002-08-01 51.35 2002-09-01 51.32 2002-10-01 51.44 2002-11-01 51.09 2002-12-01 51.18 2003-01-01 52.23 2003-02-01 52.36 2003-03-01 52.49 2003-04-01 52.51 2003-05-01 52.48 2003-06-01 52.41 2003-07-01 52.40 2003-08-01 52.57 2003-09-01 52.74 2003-10-01 52.85 2003-11-01 52.94 2003-12-01 52.99 2004-01-01 52.98 2004-02-01 53.04 2004-03-01 53.01 2004-04-01 53.36 2004-05-01 53.87 2004-06-01 53.98 2004-07-01 54.10 2004-08-01 54.33 2004-09-01 54.51 2004-10-01 54.57 2004-11-01 54.76 2004-12-01 55.18 2005-01-01 56.69 2005-02-01 57.72 2005-03-01 58.43 2005-04-01 58.66 2005-05-01 59.09 2005-06-01 59.26 2005-07-01 59.46 2005-08-01 59.90 2005-09-01 60.12 2005-10-01 60.50 2005-11-01 60.65 2005-12-01 62.74 2006-01-01 65.81 2006-02-01 67.03 2006-03-01 67.53 2006-04-01 67.97 2006-05-01 68.19 2006-06-01 68.55 2006-07-01 68.85 2006-08-01 69.00 2006-09-01 69.24 2006-10-01 69.57 2006-11-01 69.93 2006-12-01 70.21 2007-01-01 70.70 2007-02-01 71.15 2007-03-01 71.45 2007-04-01 71.67 2007-05-01 72.20 2007-06-01 72.84 2007-07-01 73.32 2007-08-01 74.05 2007-09-01 74.90 2007-10-01 75.84 2007-11-01 76.56 2007-12-01 77.66 2008-01-01 78.11 2008-02-01 78.40 2008-03-01 79.16 2008-04-01 80.11 2008-05-01 82.09 2008-06-01 83.39 2008-07-01 85.07 2008-08-01 85.65 2008-09-01 86.44 2008-10-01 87.07 2008-11-01 87.89 2008-12-01 88.55 2009-01-01 89.05 2009-02-01 89.14 2009-03-01 89.47 2009-04-01 89.43 2009-05-01 89.78 2009-06-01 89.68 2009-07-01 89.83 2009-08-01 90.11 2009-09-01 90.08 2009-10-01 90.09 2009-11-01 90.07 2009-12-01 90.47 2010-01-01 90.67 2010-02-01 90.16 2010-03-01 90.23 2010-04-01 90.37 2010-05-01 90.66 2010-06-01 91.46 2010-07-01 92.58 2010-08-01 92.90 2010-09-01 93.25 2010-10-01 93.62 2010-11-01 93.95 2010-12-01 93.76 2011-01-01 94.28 2011-02-01 94.87 2011-03-01 94.98 2011-04-01 95.06 2011-05-01 94.56 2011-06-01 94.93 2011-07-01 94.36 2011-08-01 94.07 2011-09-01 94.71 2011-10-01 94.97 2011-11-01 94.74 2011-12-01 94.98 2012-01-01 95.16 2012-02-01 95.28 2012-03-01 95.34 2012-04-01 94.98 2012-05-01 95.07 2012-06-01 95.47 2012-07-01 95.80 2012-08-01 96.12 2012-09-01 96.01 2012-10-01 96.11 2012-11-01 96.36 2012-12-01 96.14 2013-01-01 96.25 2013-02-01 96.77 2013-03-01 97.46 2013-04-01 97.33 2013-05-01 97.73 2013-06-01 97.62 2013-07-01 98.02 2013-08-01 98.08 2013-09-01 98.01 2013-10-01 98.42 2013-11-01 98.95 2013-12-01 99.16 2014-01-01 99.53 2014-02-01 99.44 2014-03-01 99.38 2014-04-01 98.84 2014-05-01 98.78 2014-06-01 98.32 2014-07-01 98.53 2014-08-01 98.89 2014-09-01 98.98 2014-10-01 99.18 2014-11-01 99.60 2014-12-01 99.45 2015-01-01 99.93 2015-02-01 99.52 2015-03-01 99.68 2015-04-01 99.81 2015-05-01 99.93 2015-06-01 100.07 2015-07-01 99.40 2015-08-01 100.09 2015-09-01 100.28 2015-10-01 100.40 2015-11-01 100.26 2015-12-01 100.61 2016-01-01 100.85 2016-02-01 100.49 2016-03-01 100.27 2016-04-01 99.92 2016-05-01 99.77 2016-06-01 99.32 2016-07-01 98.85 2016-08-01 98.72 2016-09-01 99.41 2016-10-01 100.02 2016-11-01 99.56 2016-12-01 99.32 2017-01-01 99.92 2017-02-01 99.85 2017-03-01 99.56 2017-04-01 99.08 2017-05-01 98.66 2017-06-01 99.10 2017-07-01 98.48 2017-08-01 98.42 2017-09-01 98.62 2017-10-01 98.01 2017-11-01 98.72 2017-12-01 98.66 2018-01-01 99.37 2018-02-01 99.75 2018-03-01 99.80 2018-04-01 100.07 2018-05-01 99.56 2018-06-01 98.69 2018-07-01 99.11 2018-08-01 98.97 2018-09-01 99.39 2018-10-01 99.52