Year | Value | 2021 | 57,262.562277128 | 2020 | 51,938.724193451 | 2019 | 53,798.02092798 | 2018 | 52,234.347326224 | 2017 | 50,007.966405683 | 2016 | 48,039.062908539 | 2015 | 47,711.561768367 | 2014 | 47,036.327235085 | 2013 | 45,455.700398676 | 2012 | 44,594.136894412 | 2011 | 42,674.315765704 | 2010 | 40,891.51923531 | 2009 | 38,545.886415489 | 2008 | 39,936.673802519 | 2007 | 40,138.371617312 | 2006 | 39,078.509407649 | 2005 | 36,650.254414996 | 2004 | 34,602.186372763 | 2003 | 32,490.667311362 | 2002 | 31,234.871227107 | 2001 | 30,626.249385475 | 2000 | 30,015.464000607 | 1999 | 28,437.146349637 | 1998 | 27,149.577427296 | 1997 | 25,892.186247781 | 1996 | 24,504.91986335 | 1995 | 23,367.587709319 | 1994 | 22,403.018215398 | 1993 | 21,327.119372834 | 1992 | 20,753.93873121 | 1991 | 20,017.512765886 | 1990 | 19,638.170703474 | 1989 | 18,902.153243158 | 1988 | 17,887.081378078 | 1987 | 16,407.845699977 | 1986 | 15,450.755754493 | 1985 | 14,791.245579001 | 1984 | 13,973.376646849 | 1983 | 12,569.951337066 | 1982 | 11,832.754454469 | 1981 | 11,287.510436608 | 1980 | 9,984.6949376497 | 1979 | 9,364.0497098778 | 1978 | 8,753.2253965668 | 1977 | 7,884.9045250086 | 1976 | 7,212.0655947937 | 1975 | 6,494.6041915844 | 1974 | 6,083.0730786387 | 1973 | 5,780.0636485468 | 1972 | 5,208.0029908358 | 1971 | 4,757.6095816205 | 1970 | 4,446.5629102399 |
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