Year 2004-2006 = 100 1961 23.84 1962 24.94 1963 26.09 1964 26.85 1965 27.45 1966 28.93 1967 30.8 1968 34.47 1969 34.23 1970 36.59 1971 34.25 1972 34.57 1973 30.69 1974 30.74 1975 32.04 1976 32.81 1977 44.03 1978 43.64 1979 41.01 1980 46.19 1981 46.55 1982 47.12 1983 47.34 1984 41.94 1985 32.63 1986 34.82 1987 38.06 1988 40.6 1989 42.69 1990 46.28 1991 47.15 1992 50.98 1993 53.44 1994 54.96 1995 54.83 1996 66.97 1997 67.59 1998 70.88 1999 74.02 2000 79.59 2001 85.49 2002 87.17 2003 90.48 2004 94.96 2005 100.28 2006 104.76 2007 109.93 2008 116.8 2009 105.88 2010 108.38 2011 100.21 2012 101.91 2013 100.27 2014 101.45 2015 102.65 2016 103.86