Year 2004-2006 = 100 1961 24.08 1962 24.44 1963 24.45 1964 24.09 1965 24.98 1966 25.85 1967 29.09 1968 27.47 1969 28.05 1970 29.03 1971 30.93 1972 30.45 1973 32.01 1974 32.89 1975 33.15 1976 35.27 1977 36.3 1978 40.06 1979 41.56 1980 42.7 1981 44.75 1982 44.94 1983 45.44 1984 44.17 1985 43.38 1986 43.18 1987 45.9 1988 50.02 1989 52.68 1990 57.97 1991 56.4 1992 63.03 1993 67.34 1994 79.36 1995 89.36 1996 93.67 1997 82.58 1998 80.99 1999 84.59 2000 89.31 2001 91.38 2002 94.09 2003 97.98 2004 101.24 2005 98.52 2006 100.25 2007 103.57 2008 97.48 2009 98.99 2010 101.02 2011 104.66 2012 108.27 2013 110.78 2014 111.07 2015 111.72 2016 113.07