| Year | Value | | 2021 | 1,179,577.597 | | 2020 | 1,177,577.597 | | 2019 | 1,165,577.597 | | 2018 | 1,159,577.597 | | 2017 | 1,176,404 | | 2016 | 1,189,899 | | 2015 | 1,207,394 | | 2014 | 1,211,889 | | 2013 | 1,229,374 | | 2012 | 1,247,419 | | 2011 | 1,253,184 | | 2010 | 1,262,679 | | 2009 | 1,243,284 | | 2008 | 1,270,469 | | 2007 | 1,299,684 | | 2006 | 1,301,389 | | 2005 | 1,299,209 | | 2004 | 1,294,966 | | 2003 | 1,291,033 | | 2002 | 1,287,100 | | 2001 | 1,286,060 | | 2000 | 1,285,100 | | 1999 | 1,284,120 | | 1998 | 1,283,300 | | 1997 | 1,282,350 | | 1996 | 1,281,420 | | 1995 | 1,280,450 | | 1994 | 1,279,480 | | 1993 | 1,278,500 | | 1992 | 1,277,550 | | 1991 | 1,276,600 | | 1990 | 1,275,650 | | 1989 | 1,274,700 | | 1988 | 1,273,800 | | 1987 | 1,273,840 | | 1986 | 1,273,840 | | 1985 | 1,273,840 | | 1984 | 1,273,840 | | 1983 | 1,273,850 | | 1982 | 1,273,840 | | 1981 | 1,273,830 | | 1980 | 1,273,830 | | 1979 | 1,273,830 | | 1978 | 1,273,830 | | 1977 | 1,273,830 | | 1976 | 1,273,830 | | 1975 | 1,273,830 | | 1974 | 1,273,830 | | 1973 | 1,273,830 | | 1972 | 1,273,830 | | 1971 | 1,273,830 | | 1970 | 1,273,830 | | 1969 | 1,273,820 | | 1968 | 1,292,350 | | 1967 | 1,297,030 | | 1966 | 1,309,480 | | 1965 | 1,317,800 | | 1964 | 1,332,970 | | 1963 | 1,348,750 | | 1962 | 1,364,340 | | 1961 | 1,378,290 |
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