Year | Value | 2021 | 3,224.2498907732 | 2020 | 2,965.4404399134 | 2019 | 3,114.0228936932 | 2018 | 2,957.46643907 | 2017 | 2,968.9430968799 | 2016 | 2,812.0366908273 | 2015 | 2,561.2085312613 | 2014 | 2,620.1084950683 | 2013 | 2,718.8362741754 | 2012 | 2,755.1281329678 | 2011 | 2,670.4525426988 | 2010 | 2,320.478942717 | 2009 | 1,667.8286975842 | 2008 | 1,536.9059697756 | 2007 | 1,317.5327987353 | 2006 | 1,123.4531445372 | 2005 | 873.38719888004 | 2004 | 810.44089463016 | 2003 | 771.30186209154 | 2002 | 656.94206586638 | 2001 | 531.12742722257 | 2000 | 621.96485288637 | 1999 | 546.8126275014 | 1998 | 387.53483219332 | 1997 | 931.33765881546 | 1996 | 996.36494163988 | 1995 | 900.75772216675 | 1994 | 804.42875040831 | 1993 | 715.54744495757 | 1992 | 576.13158665477 | 1991 | 532.82710099118 | 1990 | 470.91379097545 | 1989 | 433.98970333026 | 1988 | 407.75570285756 | 1987 | 365.69752044579 | 1986 | 406.61855246259 | 1985 | 423.32237135151 | 1984 | 423.06104045201 | 1983 | 416.92649377692 | 1982 | 487.23673185255 | 1981 | 435.68502274627 | 1980 | 347.08168694173 | 1979 | 237.73589148397 | 1978 | 292.96955637699 | 1977 | 263.46764938969 | 1976 | 223.92771319617 | 1975 | 186.20009818392 | 1974 | 157.71495803423 | 1973 | 114.05973506533 | 1972 | 80.642157250866 | 1971 | 72.031915684241 | 1970 | 72.640379357739 |
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