Year 2004-2006 = 100 1961 23.82 1962 23.74 1963 22.46 1964 23.8 1965 24.97 1966 24.97 1967 25.08 1968 26.57 1969 27.1 1970 29.49 1971 30.97 1972 32.11 1973 32.08 1974 32.15 1975 32.37 1976 33.88 1977 39.4 1978 40.85 1979 42.13 1980 40.29 1981 37.98 1982 42.85 1983 46.19 1984 47.33 1985 49.09 1986 53.69 1987 58.81 1988 64.06 1989 64.61 1990 63.37 1991 64.34 1992 63.74 1993 62.74 1994 62.97 1995 63.44 1996 63.5 1997 66.64 1998 66.58 1999 72.16 2000 69.6 2001 76 2002 82.81 2003 86.23 2004 93.78 2005 101.47 2006 104.75 2007 107.71 2008 112.59 2009 120.13 2010 120.04 2011 119.74 2012 115.45 2013 116.14 2014 113.06 2015 114.62 2016 122.09