Year 2004-2006 = 100 1961 27.82 1962 26.19 1963 25.47 1964 25.26 1965 27.46 1966 29.09 1967 30.36 1968 32.17 1969 33.11 1970 33.51 1971 33.72 1972 36.48 1973 36.35 1974 35.29 1975 32.73 1976 31.68 1977 34.45 1978 37.07 1979 40 1980 41.23 1981 46.89 1982 47.05 1983 44 1984 43.8 1985 42.82 1986 48.18 1987 56.82 1988 62.95 1989 70.83 1990 71.08 1991 71.55 1992 73.4 1993 71.66 1994 69.2 1995 72.13 1996 70.44 1997 82.42 1998 78.07 1999 86.98 2000 87.55 2001 88.21 2002 93.14 2003 92.84 2004 94.06 2005 101.41 2006 104.53 2007 108.09 2008 113.33 2009 122.13 2010 131.25 2011 138.42 2012 142.11 2013 137.54 2014 148.47 2015 149.56 2016 148.17