Year | Value | 2021 | 3,227.9992920585 | 2020 | 2,936.8395978807 | 2019 | 2,951.3124602935 | 2018 | 3,009.1864081571 | 2017 | 2,980.2638083946 | 2016 | 3,168.2190546421 | 2015 | 3,265.9403583784 | 2014 | 3,483.7201316505 | 2013 | 3,278.1991156714 | 2012 | 3,173.2836416838 | 2011 | 3,290.4159814274 | 2010 | 3,235.651084602 | 2009 | 3,021.2197024655 | 2008 | 3,050.1754187265 | 2007 | 2,771.0905070501 | 2006 | 2,540.6875823258 | 2005 | 2,401.1738944814 | 2004 | 2,404.4721224055 | 2003 | 2,144.6473837252 | 2002 | 1,802.9238091926 | 2001 | 1,745.5374366998 | 2000 | 1,681.7865221789 | 1999 | 1,837.8974080062 | 1998 | 1,765.5617140336 | 1997 | 1,681.4459566368 | 1996 | 1,559.8262861432 | 1995 | 1,467.251783528 | 1994 | 1,272.1831147519 | 1993 | 1,191.4291667929 | 1992 | 1,313.3899004583 | 1991 | 1,237.150060151 | 1990 | 1,209.9928132961 | 1989 | 993.90134506503 | 1988 | 1,019.2205155732 | 1987 | 984.99468409701 | 1986 | 943.31676850434 | 1985 | 887.28838745797 | 1984 | 910.60151919863 | 1983 | 961.80006326228 | 1982 | 964.79756145427 | 1981 | 1,018.2883092698 | 1980 | 1,066.289414184 | 1979 | 898.59889868815 | 1978 | 807.31288067602 | 1977 | 705.59231623826 | 1976 | 651.61247643508 | 1975 | 651.37768312684 | 1974 | 547.27542892422 | 1973 | 441.24190435928 | 1972 | 378.10812885804 | 1971 | 291.00677968316 | 1970 | 252.47425648804 |
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