Year 2004-2006 = 100 1961 30.19 1962 31.12 1963 30.67 1964 33.47 1965 33.51 1966 36.11 1967 37.33 1968 34.75 1969 38.29 1970 41.79 1971 42.88 1972 41.14 1973 41.39 1974 43.19 1975 42.52 1976 42.69 1977 42.96 1978 42.02 1979 41.45 1980 40.02 1981 44.48 1982 46.79 1983 43.8 1984 47.43 1985 47.55 1986 48.68 1987 53.62 1988 56.64 1989 54.65 1990 50.38 1991 52.52 1992 49.89 1993 52.95 1994 59.75 1995 63.73 1996 69.4 1997 74.03 1998 72.85 1999 82.81 2000 86.39 2001 84.83 2002 90.2 2003 93.78 2004 93.17 2005 99.91 2006 106.91 2007 110.93 2008 121.47 2009 124.02 2010 131.02 2011 133.94 2012 142.35 2013 148.26 2014 149.4 2015 149.46 2016 151.81