| Year | Value | | 2023 | 136,998 | | 2022 | 139,585.38 | | 2021 | 22,359 | | 2020 | 99,838 | | 2019 | 457,130 | | 2018 | 563,540 | | 2017 | 942,785 | | 2016 | 1,333,078 | | 2015 | 1,294,458 | | 2014 | 1,135,200 | | 2013 | 1,395,072 | | 2012 | 1,313,502.683984 | | 2011 | 1,478,595.9591607 | | 2010 | 1,578,011.7886714 | | 2009 | 780,484 | | 2008 | 861,352 | | 2007 | 857,213 | | 2006 | 811,559 | | 2005 | 812,781 | | 2004 | 743,256 | | 2003 | 610,957 | | 2002 | 588,700 | | 2001 | 882,309 | | 2000 | 1,007,193 | | 1999 | 1,259,000 | | 1998 | 1,138,400 | | 1997 | 1,117,000 | | 1996 | 928,700 | | 1995 | 823,700 | | 1994 | 730,900 | | 1993 | 624,100 | | 1992 | 733,000 | | 1991 | 830,600 | | 1990 | 1,137,500 | | 1989 | 989,800 | | 1988 | 963,900 | | 1987 | 889,000 | | 1986 | 913,200 | | 1985 | 894,400 | | 1984 | 839,100 | | 1983 | 839,400 | | 1982 | 135,000 | | 1981 | 650,700 | | 1980 | 675,600 | | 1979 | 819,400 | | 1978 | 725,500 | | 1977 | 634,800 | | 1976 | 716,600 |
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