Year Index (2000=100) 1980 172.66924 1981 122.71259 1982 110.20569 1983 97.25747 1984 87.85562 1985 97.04468 1986 60.76917 1987 62.9364 1988 52.58886 1989 63.31468 1990 104.22413 1991 88.53338 1992 85.05792 1993 67.33391 1994 61.98282 1995 70.52823 1996 77.82074 1997 75.87974 1998 47.40126 1999 62.55992 2000 100 2001 86.55131 2002 77.03491 2003 115.10051 2004 160.38789 2005 246.42054 2006 316.37854 2007 369.10431 2008 488.00038 2009 290.37084 2010 382.48408 2011 149.27655 2012 478.93109 2013 341.83601 2014 165.02428 2015 80.15465 2016 47.14979