Year 2004-2006 = 100 1961 21.08 1962 21.42 1963 24.46 1964 26.2 1965 24.43 1966 28.31 1967 30.69 1968 32.34 1969 34.29 1970 38.24 1971 38.25 1972 39.59 1973 43.52 1974 47.31 1975 47.97 1976 50.41 1977 52.73 1978 53.82 1979 56.16 1980 61.9 1981 63.86 1982 65.7 1983 66.04 1984 66.66 1985 65.98 1986 65.21 1987 67.35 1988 70.76 1989 69.35 1990 72.14 1991 75.9 1992 75.34 1993 76.55 1994 77.1 1995 79.7 1996 82.83 1997 84.97 1998 92.39 1999 94.75 2000 95.35 2001 97.69 2002 102.14 2003 104.38 2004 101.99 2005 99.51 2006 98.5 2007 99.44 2008 102.54 2009 98.14 2010 99.63 2011 102.68 2012 101.27 2013 100.81 2014 101.63 2015 101.78 2016 95.35