Year 2004-2006 = 100 1961 41.01 1962 41.25 1963 39.77 1964 38.54 1965 34.88 1966 32.75 1967 32.03 1968 32.29 1969 30.4 1970 31.13 1971 27.71 1972 29.91 1973 28.61 1974 29.71 1975 34.67 1976 39.59 1977 36.33 1978 33.87 1979 35.4 1980 36.45 1981 40.5 1982 46.33 1983 41.08 1984 50.9 1985 50.5 1986 55.15 1987 54.37 1988 52.75 1989 58.67 1990 61.36 1991 58.02 1992 61.53 1993 62.41 1994 63.1 1995 66.57 1996 68.71 1997 74.43 1998 76.99 1999 81.94 2000 86.91 2001 90.67 2002 90.88 2003 90.12 2004 94.72 2005 100.57 2006 104.71 2007 104.97 2008 121.32 2009 124.53 2010 131.01 2011 127.18 2012 134.99 2013 143.55 2014 140.22 2015 144.79 2016 148.35