Year | Value | 2014 | 13,480.148224391 | 2013 | 13,870.389908565 | 2012 | 14,289.595093123 | 2011 | 14,030.16314692 | 2010 | 14,934.326964684 | 2009 | 14,143.011007672 | 2008 | 14,869.348977622 | 2007 | 15,257.93575316 | 2006 | 15,262.587267999 | 2005 | 15,430.963948236 | 2004 | 15,420.973141695 | 2003 | 15,360.178892502 | 2002 | 15,709.429669025 | 2001 | 16,020.980310163 | 2000 | 15,681.615273212 | 1999 | 15,470.868066085 | 1998 | 15,522.133496268 | 1997 | 15,410.699133694 | 1996 | 15,434.230388922 | 1995 | 15,475.013478625 | 1994 | 15,290.616001262 | 1993 | 15,506.802097273 | 1992 | 15,544.411458749 | 1991 | 15,932.926210128 | 1990 | 15,836.033759268 | 1989 | 15,680.862417408 | 1988 | 15,895.830599672 | 1987 | 15,746.259379238 | 1986 | 14,858.368074186 | 1985 | 14,950.326847166 | 1984 | 13,692.984134429 | 1983 | 12,609.02676217 | 1982 | 11,440.239185237 | 1981 | 11,112.30895536 | 1980 | 10,703.407519929 | 1979 | 10,694.290277486 | 1978 | 10,143.434934438 | 1977 | 9,828.3471933724 | 1976 | 9,751.5459812514 | 1975 | 9,051.5191023135 | 1974 | 8,786.4455134863 | 1973 | 8,745.4856696744 | 1972 | 8,131.9330731443 | 1971 | 7,674.294490694 | 1970 | 7,315.9835733845 | 1969 | 7,017.8833725398 | 1968 | 6,512.919865126 | 1967 | 6,017.9734672305 | 1966 | 5,632.1904885591 | 1965 | 5,521.1807103135 | 1964 | 5,189.2916056352 | 1963 | 4,728.7544671929 | 1962 | 4,613.9779104601 | 1961 | 4,355.4532860248 | 1960 | 4,002.3215495809 |
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