Year 2000 = 100 1980 260.6060606 1981 252.2522523 1982 270.0787402 1983 260.1626016 1984 269.3693694 1985 257.8947368 1986 234.6153846 1987 243.6708861 1988 278.0141844 1989 295.7746479 1990 237.5 1991 268.9393939 1992 280.7407407 1993 273.8461538 1994 200 1995 192.96875 1996 166.9230769 1997 150 1998 123.6842105 1999 107.1428571 2000 100 2001 96.95174149 2002 94.38646023 2003 99.43578426 2004 101.4196089 2005 93.79076669 2006 91.98853627 2007 92.89086747 2008 84.22742412 2009 83.93225466 2010 85.51949735 2011 76.77799276 2012 73.23618386 2013 75.13952709 2014 79.52669391 2015 78.09192847 2016 78.0109083 2017 79.46993982 2018 76.99973837