Year | Value | 2021 | 35,297.97 | 2020 | 35,238.71 | 2019 | 35,236.59 | 2018 | 35,230 | 2017 | 35,210 | 2016 | 34,880 | 2015 | 34,940 | 2014 | 35,160 | 2013 | 35,210 | 2012 | 35,258.9 | 2011 | 35,040.4 | 2010 | 35,239.2 | 2009 | 35,458.7 | 2008 | 35,716.1 | 2007 | 35,967 | 2006 | 35,659.5 | 2005 | 36,054.9 | 2004 | 36,313.9 | 2003 | 36,684.2 | 2002 | 36,520.6 | 2001 | 42,780 | 2000 | 42,800 | 1999 | 42,820 | 1998 | 42,840 | 1997 | 42,800 | 1996 | 42,800 | 1995 | 42,800 | 1994 | 42,840 | 1993 | 42,820 | 1992 | 42,820 | 1991 | 42,820 | 1990 | 42,820 | 1989 | 42,820 | 1988 | 42,820 | 1987 | 42,820 | 1986 | 42,820 | 1985 | 42,820 | 1984 | 42,820 | 1983 | 42,820 | 1982 | 42,820 | 1981 | 42,820 | 1980 | 42,820 | 1979 | 42,820 | 1978 | 42,820 | 1977 | 42,820 | 1976 | 42,820 | 1975 | 42,820 | 1974 | 42,820 | 1973 | 42,820 | 1972 | 42,820 | 1971 | 42,820 | 1970 | 42,820 | 1969 | 42,820 | 1968 | 42,820 | 1967 | 42,820 | 1966 | 42,820 | 1965 | 42,820 | 1964 | 42,820 | 1963 | 42,820 | 1962 | 42,820 | 1961 | 42,820 |
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