| Year | Value | | 2023 | 8,367.297795 | | 2022 | 8,421.527714636 | | 2021 | 9,338.328585454 | | 2020 | 6,870.46874 | | 2019 | 6,815.50975 | | 2018 | 5,949.212205544 | | 2017 | 4,800.237745146 | | 2016 | 3,493.930482468 | | 2015 | 2,882.162 | | 2014 | 2,630.33 | | 2013 | 2,296.0387342493 | | 2012 | 1,933.6783596264 | | 2011 | 1,544.2662601014 | | 2010 | 1,149.281 | | 2009 | 856.034 | | 2008 | 480.667 | | 2007 | 466.098 | | 2006 | 463.902 | | 2005 | 382.949 | | 2004 | 370.182 | | 2003 | 376.657 | | 2002 | 380.794 | | 2001 | 349.982 | | 2000 | 385.036 | | 1999 | 312.8999938965 | | 1998 | 246.6000061035 | | 1997 | 255.3999938965 | | 1996 | 207.3000030518 | | 1995 | 214.6999969482 | | 1994 | 209.6000061035 | | 1993 | 161.3999938965 | | 1992 | 117.1999969482 | | 1991 | 78.6999969482 | | 1990 | 101.3000030518 | | 1989 | 81.8000030518 | | 1988 | 52.7000007629 | | 1987 | 46.9000015259 | | 1986 | 45.4000015259 | | 1985 | 28.7000007629 | | 1984 | 26.2999992371 | | 1983 | 26 | | 1982 | 22.2999992371 | | 1981 | 18.2000007629 | | 1980 | 10.3000001907 | | 1979 | 15.1000003815 | | 1978 | 12.3000001907 | | 1977 | 15.1000003815 | | 1976 | 14.3000001907 |
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