Year 2004-2006 = 100 1961 35.16 1962 32.82 1963 31.11 1964 33.77 1965 36.23 1966 36.32 1967 36.85 1968 37.63 1969 36.74 1970 39.44 1971 39.71 1972 40.5 1973 37.49 1974 38.15 1975 35.62 1976 36.81 1977 42.18 1978 41.62 1979 42.79 1980 43.45 1981 44.3 1982 43.88 1983 46.22 1984 47.83 1985 49.05 1986 50.57 1987 47.58 1988 54.69 1989 64.66 1990 69.43 1991 76.29 1992 80.91 1993 80.91 1994 74.75 1995 71.69 1996 77.36 1997 86.53 1998 90.55 1999 85.38 2000 91.18 2001 89.76 2002 93.32 2003 92.65 2004 89.84 2005 98.16 2006 111.99 2007 101.46 2008 108.2 2009 113.65 2010 123.2 2011 125.37 2012 131.41 2013 133.71 2014 134.31 2015 129.65 2016 129.46