| Year | Value | | 2021 | 15,861.65425 | | 2020 | 13,543.50932 | | 2019 | 12,739.81097 | | 2018 | 12,666.7094 | | 2017 | 10,970.08988 | | 2016 | 9,206.16533 | | 2015 | 7,563.30739 | | 2014 | 5,993.108 | | 2013 | 4,960.582 | | 2012 | 4,306.922 | | 2011 | 3,637.131 | | 2010 | 2,945.787 | | 2009 | 2,276.378 | | 2008 | 1,639.146 | | 2007 | 1,292.746 | | 2006 | 888.498 | | 2005 | 869.582 | | 2004 | 469.19 | | 2003 | 276.42 | | 2002 | 305.484 | | 2001 | 256.817 | | 2000 | 244.07 | | 1999 | 206.6999969482 | | 1998 | 104.5 | | 1997 | 96.5999984741 | | 1996 | 105.8000030518 | | 1995 | 132.8000030518 | | 1994 | 122.0999984741 | | 1993 | 88.0999984741 | | 1992 | 69.8000030518 | | 1991 | 51.2000007629 | | 1990 | 44.2999992371 | | 1989 | 40 | | 1988 | 33.9000015259 | | 1987 | 31.5 | | 1986 | 31.3999996185 | | 1985 | 32.5999984741 | | 1984 | 30.7000007629 | | 1983 | 23.7999992371 | | 1982 | 21.6000003815 | | 1981 | 21.3999996185 | | 1980 | 26.2000007629 | | 1979 | 14 | | 1978 | 9.6000003815 | | 1977 | 8.1999998093 | | 1976 | 6.8000001907 | | 1975 | 4 |
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