Year 2000 = 100 1980 41.35586808 1981 54.40546145 1982 58.71346499 1983 39.26986261 1984 35.55387537 1985 31.76307756 1986 45.45495459 1987 52.05226461 1988 45.38446498 1989 32.90624636 1990 39.43441199 1991 48.65482657 1992 56.38685493 1993 58.59295242 1994 77.72695162 1995 97.78903517 1996 98.36728453 1997 112.3003475 1998 113.8287721 1999 96.54724733 2000 100 2001 101.7349857 2002 105.9620204 2003 111.0071909 2004 120.0264849 2005 133.0959651 2006 153.1702347 2007 186.3054732 2008 235.0499643 2009 191.2688289 2010 244.2127723 2011 270.1682253 2012 304.3974984 2013 314.0901848 2014 309.272944 2015 305.0630213 2016 300.6432745 2017 313.8129576 2018 317.9975685