Month Index 2015=100 1997-12-01 83.29 1998-01-01 83.29 1998-02-01 83.29 1998-03-01 83.29 1998-04-01 83.29 1998-05-01 83.29 1998-06-01 83.29 1998-07-01 83.29 1998-08-01 83.29 1998-09-01 83.29 1998-10-01 83.29 1998-11-01 83.29 1998-12-01 83.29 1999-01-01 83.29 1999-02-01 83.29 1999-03-01 83.29 1999-04-01 83.29 1999-05-01 83.29 1999-06-01 83.29 1999-07-01 83.29 1999-08-01 83.29 1999-09-01 83.29 1999-10-01 83.29 1999-11-01 83.29 1999-12-01 83.29 2000-01-01 83.29 2000-02-01 83.29 2000-03-01 83.29 2000-04-01 84.00 2000-05-01 84.00 2000-06-01 84.00 2000-07-01 83.54 2000-08-01 83.54 2000-09-01 83.54 2000-10-01 83.54 2000-11-01 83.54 2000-12-01 83.54 2001-01-01 83.54 2001-02-01 83.54 2001-03-01 83.54 2001-04-01 83.54 2001-05-01 83.54 2001-06-01 83.54 2001-07-01 83.54 2001-08-01 83.54 2001-09-01 83.54 2001-10-01 83.54 2001-11-01 83.54 2001-12-01 83.54 2002-01-01 83.54 2002-02-01 83.54 2002-03-01 83.54 2002-04-01 83.54 2002-05-01 92.96 2002-06-01 92.96 2002-07-01 93.09 2002-08-01 93.09 2002-09-01 93.09 2002-10-01 93.09 2002-11-01 93.09 2002-12-01 93.09 2003-01-01 93.14 2003-02-01 93.14 2003-03-01 93.14 2003-04-01 93.14 2003-05-01 93.14 2003-06-01 93.14 2003-07-01 93.04 2003-08-01 93.04 2003-09-01 93.14 2003-10-01 93.14 2003-11-01 93.55 2003-12-01 93.55 2004-01-01 93.55 2004-02-01 93.55 2004-03-01 95.12 2004-04-01 95.12 2004-05-01 95.12 2004-06-01 95.12 2004-07-01 95.12 2004-08-01 95.12 2004-09-01 95.12 2004-10-01 95.12 2004-11-01 95.12 2004-12-01 94.84 2005-01-01 94.84 2005-02-01 94.84 2005-03-01 94.84 2005-04-01 94.84 2005-05-01 94.84 2005-06-01 94.84 2005-07-01 94.84 2005-08-01 94.84 2005-09-01 94.84 2005-10-01 94.84 2005-11-01 94.84 2005-12-01 95.28 2006-01-01 94.82 2006-02-01 94.62 2006-03-01 94.62 2006-04-01 94.62 2006-05-01 94.62 2006-06-01 94.62 2006-07-01 94.65 2006-08-01 94.65 2006-09-01 94.65 2006-10-01 94.69 2006-11-01 94.69 2006-12-01 94.69 2007-01-01 94.73 2007-02-01 94.73 2007-03-01 94.73 2007-04-01 94.73 2007-05-01 94.73 2007-06-01 94.73 2007-07-01 94.73 2007-08-01 94.73 2007-09-01 94.93 2007-10-01 94.73 2007-11-01 94.73 2007-12-01 94.73 2008-01-01 95.52 2008-02-01 95.59 2008-03-01 95.62 2008-04-01 95.62 2008-05-01 95.62 2008-06-01 95.62 2008-07-01 95.62 2008-08-01 95.81 2008-09-01 95.83 2008-10-01 95.91 2008-11-01 95.91 2008-12-01 95.91 2009-01-01 95.91 2009-02-01 95.91 2009-03-01 97.11 2009-04-01 97.11 2009-05-01 97.13 2009-06-01 97.13 2009-07-01 97.18 2009-08-01 97.18 2009-09-01 97.18 2009-10-01 97.18 2009-11-01 97.18 2009-12-01 97.18 2010-01-01 97.18 2010-02-01 97.18 2010-03-01 97.42 2010-04-01 97.42 2010-05-01 97.42 2010-06-01 97.53 2010-07-01 97.53 2010-08-01 97.53 2010-09-01 98.18 2010-10-01 98.18 2010-11-01 98.18 2010-12-01 98.18 2011-01-01 98.18 2011-02-01 98.18 2011-03-01 98.18 2011-04-01 98.18 2011-05-01 98.18 2011-06-01 98.18 2011-07-01 98.18 2011-08-01 98.18 2011-09-01 98.18 2011-10-01 98.18 2011-11-01 98.28 2011-12-01 98.28 2012-01-01 98.43 2012-02-01 98.43 2012-03-01 99.17 2012-04-01 99.17 2012-05-01 99.17 2012-06-01 99.17 2012-07-01 99.17 2012-08-01 99.35 2012-09-01 99.35 2012-10-01 99.35 2012-11-01 99.35 2012-12-01 99.35 2013-01-01 99.35 2013-02-01 99.35 2013-03-01 99.35 2013-04-01 99.46 2013-05-01 99.46 2013-06-01 99.46 2013-07-01 99.46 2013-08-01 98.94 2013-09-01 98.94 2013-10-01 98.94 2013-11-01 98.94 2013-12-01 98.94 2014-01-01 99.00 2014-02-01 99.00 2014-03-01 99.00 2014-04-01 99.00 2014-05-01 99.00 2014-06-01 99.00 2014-07-01 99.00 2014-08-01 99.09 2014-09-01 99.09 2014-10-01 99.09 2014-11-01 99.09 2014-12-01 99.18 2015-01-01 99.99 2015-02-01 99.99 2015-03-01 99.99 2015-04-01 100.00 2015-05-01 100.00 2015-06-01 100.00 2015-07-01 100.03 2015-08-01 100.03 2015-09-01 99.92 2015-10-01 99.92 2015-11-01 100.06 2015-12-01 100.06 2016-01-01 100.06 2016-02-01 99.97 2016-03-01 99.97 2016-04-01 101.26 2016-05-01 102.91 2016-06-01 102.91 2016-07-01 102.91 2016-08-01 102.79 2016-09-01 102.79 2016-10-01 102.79 2016-11-01 102.79 2016-12-01 102.79 2017-01-01 102.79 2017-02-01 102.79 2017-03-01 102.79 2017-04-01 102.79 2017-05-01 102.79 2017-06-01 102.79 2017-07-01 102.79 2017-08-01 102.79 2017-09-01 102.75 2017-10-01 102.75 2017-11-01 102.75 2017-12-01 102.75 2018-01-01 102.75 2018-02-01 102.75 2018-03-01 102.75 2018-04-01 103.38 2018-05-01 103.38 2018-06-01 103.38 2018-07-01 103.38 2018-08-01 103.38 2018-09-01 103.42 2018-10-01 103.42