| Year | Value | | 2021 | 1,395,970,354.6502 | | 2020 | 1,231,382,388.0289 | | 2019 | 1,260,681,040.7367 | | 2018 | 1,235,438,031.1042 | | 2017 | 1,078,084,957.2373 | | 2016 | 932,708,435.30029 | | 2015 | 812,203,403.90906 | | 2014 | 833,227,270.46185 | | 2013 | 784,960,528.02902 | | 2012 | 764,875,681.85848 | | 2011 | 897,205,120.59715 | | 2010 | 667,402,441.08588 | | 2009 | 624,638,499.83481 | | 2008 | 663,023,379.07237 | | 2007 | 536,251,176.04767 | | 2006 | 474,518,813.94241 | | 2005 | 465,963,131.25395 | | 2004 | 419,209,506.51441 | | 2003 | 356,468,736.51289 | | 2002 | 334,761,071.90705 | | 2001 | 313,638,258.93319 | | 2000 | 295,790,727.69855 | | 1999 | 155,639,742.93483 | | 1998 | 115,032,960.8395 | | 1997 | 179,371,943.01494 | | 1996 | 171,535,939.60869 | | 1995 | 155,327,540.78889 | | 1994 | 163,488,247.13352 | | 1993 | 169,280,197.46222 | | 1992 | 152,442,888.58483 | | 1991 | 182,273,962.9381 | | 1990 | 176,574,820.10819 | | 1989 | 154,279,495.8038 | | 1988 | 111,763,858.67305 | | 1987 | 124,870,048.66379 | | 1986 | 90,537,623.84217 | | 1985 | 127,545,913.342 | | 1984 | 102,746,952.14803 | | 1983 | 123,306,587.0253 | | 1982 | 110,257,083.00745 | | 1981 | 112,612,459.03569 | | 1980 | 61,773,893.698969 |
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