Year 2004-2006 = 100 1961 20.15 1962 21.49 1963 21.41 1964 21.73 1965 21.35 1966 19.83 1967 20.9 1968 19.66 1969 20.37 1970 22.49 1971 23.08 1972 23.51 1973 24.08 1974 24.14 1975 23.01 1976 26.66 1977 25.93 1978 25.89 1979 29 1980 30.65 1981 31.81 1982 35.05 1983 35.51 1984 37.77 1985 38.07 1986 39.52 1987 38.96 1988 41.57 1989 44.69 1990 45.72 1991 47.21 1992 51.1 1993 54.08 1994 56.54 1995 60.25 1996 64.38 1997 67.71 1998 70.55 1999 75.93 2000 80.24 2001 82.26 2002 88.48 2003 92.21 2004 97.69 2005 99.4 2006 102.92 2007 107.04 2008 111.41 2009 111.45 2010 115.02 2011 120.16 2012 129.5 2013 131.41 2014 134.5 2015 138.05 2016 135.14