Year | Value | 2021 | 33,656.084224517 | 2020 | 27,266.178097892 | 2019 | 31,621.850524248 | 2018 | 31,869.180389622 | 2017 | 30,342.725075828 | 2016 | 27,869.695020352 | 2015 | 25,918.457903305 | 2014 | 24,698.899692426 | 2013 | 22,234.013637267 | 2012 | 19,711.764619519 | 2011 | 17,136.927451638 | 2010 | 15,792.094559764 | 2009 | 14,557.538 | 2008 | 13,176.421 | 2007 | 10,073.09 | 2006 | 8,798.176 | 2005 | 7,614.616 | 2004 | 6,842.743 | 2003 | 5,348.805 | 2002 | 4,574.315 | 2001 | 3,977.352 | 2000 | 4,069.469 | 1999 | 3,685.1999729274 | 1998 | 3,255.2000129819 | 1997 | 3,156.5000599027 | 1996 | 2,919.9999778868 | 1995 | 2,924.4000729621 | 1994 | 2,637.0999706387 | 1993 | 2,225.6999805569 | 1992 | 1,970.6000163554 | 1991 | 1,562.2000008596 | 1990 | 1,753.5999885575 | 1989 | 1,923.0000172631 | 1988 | 1,748.3000231386 | 1987 | 1,569.8000195623 | 1986 | 1,307.7000053522 | 1985 | 1,387.7000086382 | 1984 | 1,638.2999939023 | 1983 | 1,626.6999707819 | 1982 | 1,373.6999977232 | 1981 | 1,221.70000346 | 1980 | 1,143.299975231 | 1979 | 1,108.200023301 | 1978 | 929.6999979393 | 1977 | 885.1000145079 | 1976 | 838.3000017254 | 1975 | 654.7999929489 | 1974 | 556.5999877976 | 1973 | 492.9000113532 | 1972 | 355.100004606 | 1971 | 271.0000023394 | 1970 | 199.3000061659 |
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