Year 2000 = 100 1980 42.57340463 1981 41.06906815 1982 35.93522143 1983 28.65573379 1984 25.9421291 1985 24.444615 1986 26.53397123 1987 28.28050247 1988 27.38335849 1989 33.89959151 1990 38.41754718 1991 39.14242587 1992 39.34488022 1993 47.31325846 1994 61.39586052 1995 92.31658573 1996 97.16557077 1997 109.547569 1998 103.424779 1999 88.27383226 2000 100 2001 99.55425352 2002 84.78817663 2003 86.76385327 2004 113.2840636 2005 132.3730629 2006 163.425427 2007 215.9587983 2008 310.9949662 2009 227.9496003 2010 326.6141684 2011 404.076858 2012 397.9973808 2013 427.2567101 2014 407.8155865 2015 304.9493039 2016 244.5484374 2017 268.6464238 2018 321.8072066