| Year | Value | | 2021 | 76,354.068 | | 2020 | 226,645.666 | | 2019 | 675,482 | | 2018 | 561,944 | | 2017 | 336,718 | | 2016 | 565,810 | | 2015 | 548,908 | | 2014 | 590,304 | | 2013 | 600,000 | | 2012 | 597,982.60036822 | | 2011 | 620,394.75112395 | | 2010 | 570,553 | | 2009 | 776,469 | | 2008 | 807,957 | | 2007 | 793,153 | | 2006 | 753,511 | | 2005 | 690,000 | | 2004 | 560,000 | | 2003 | 252,751 | | 2002 | 236,577 | | 2001 | 242,799 | | 2000 | 263,547 | | 1999 | 252,300 | | 1998 | 236,100 | | 1997 | 237,000 | | 1996 | 129,200 | | 1995 | 124,200 | | 1994 | 118,300 | | 1993 | 100,000 | | 1992 | 100,000 | | 1991 | 96,000 | | 1990 | 176,900 | | 1989 | 176,700 | | 1988 | 176,200 | | 1987 | 174,000 | | 1986 | 150,000 | | 1985 | 128,200 | | 1984 | 127,000 | | 1983 | 122,200 | | 1982 | 104,000 | | 1981 | 103,100 | | 1980 | 75,000 | | 1979 | 65,000 | | 1978 | 60,000 | | 1977 | 55,000 | | 1976 | 53,000 |
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