Year 2015 = 100 1985 17.3145118757 1986 18.3923856254 1987 18.0765021597 1988 24.8572066326 1989 27.9003036911 1990 28.714980528 1991 27.1995771218 1992 30.7135247478 1993 41.963709237 1994 35.3324645845 1995 39.4563367005 1996 64.1766758784 1997 57.6846333922 1998 74.1459342453 1999 72.2295605095 2000 62.0254304451 2001 85.6345401411 2002 76.6871133395 2003 69.8841117788 2004 75.005910946 2005 90.2496320442 2006 93.6197922429 2007 97.6344072082 2008 108.3437344656 2009 86.9629926851 2010 98.3906031448 2011 91.0207144562 2012 93.1797714342 2013 97.7338006036 2014 102.1014994254 2015 100 2016 110.2676275444 2017 132.3533064534 2018 121.6699180449 2019 114.630679421 2020 101.8422954617 2021 99.8210281015