Year 2004-2006 = 100 1961 33.74 1962 35.78 1963 35.5 1964 37.61 1965 37.18 1966 40.7 1967 41.55 1968 37.91 1969 41.48 1970 45.7 1971 46.01 1972 43.58 1973 43.69 1974 45.17 1975 44.3 1976 43.29 1977 43.97 1978 42.19 1979 43.29 1980 39.41 1981 44.06 1982 45.93 1983 39.23 1984 46.74 1985 47.18 1986 48.47 1987 51.41 1988 54.5 1989 55.72 1990 46.94 1991 48.28 1992 42.26 1993 48.42 1994 58.4 1995 63.17 1996 69.48 1997 73.22 1998 71.99 1999 83.95 2000 88.15 2001 86.18 2002 91.61 2003 94.83 2004 93.87 2005 99.21 2006 106.91 2007 107.69 2008 117.76 2009 117.62 2010 125.63 2011 128.13 2012 135.86 2013 140.63 2014 143.32 2015 143.82 2016 146.29