Year 2004-2006 = 100 1961 17.51 1962 19.35 1963 19.46 1964 18.53 1965 19.35 1966 19.01 1967 20.52 1968 19.24 1969 22 1970 22.19 1971 22.22 1972 19.97 1973 19.96 1974 24.24 1975 28.47 1976 28.93 1977 28.09 1978 27.91 1979 27.97 1980 25.23 1981 27.08 1982 28.99 1983 31.07 1984 26.44 1985 35.38 1986 37.32 1987 35.28 1988 45.75 1989 44 1990 43.71 1991 72.26 1992 67.21 1993 67.68 1994 74.82 1995 76.25 1996 80.18 1997 82.67 1998 88.04 1999 92.2 2000 75.32 2001 91.73 2002 85.06 2003 105.96 2004 96.89 2005 102.6 2006 100.51 2007 104.08 2008 113.86 2009 128.73 2010 122.83 2011 143.28 2012 147.3 2013 148.13 2014 156.18 2015 171.71 2016 193.41