Year 2004-2006 = 100 1961 25.7 1962 27.53 1963 27.61 1964 27.26 1965 30.59 1966 30.84 1967 36.08 1968 38.49 1969 42.85 1970 38.64 1971 40.38 1972 42.52 1973 44.05 1974 45.11 1975 49.7 1976 43.54 1977 51.16 1978 59.3 1979 59.41 1980 54.15 1981 60.7 1982 61.01 1983 63.46 1984 64.24 1985 66.74 1986 68.43 1987 69.52 1988 71.89 1989 71.84 1990 74.12 1991 75.3 1992 77.44 1993 78.91 1994 83.86 1995 87.48 1996 93.39 1997 93.74 1998 94.1 1999 94.65 2000 95.41 2001 95.36 2002 97.13 2003 96.77 2004 99.19 2005 99.21 2006 101.6 2007 103.74 2008 104.94 2009 90.94 2010 94.6 2011 95.64 2012 85.86 2013 84.69 2014 85.29 2015 75.48 2016 74.05