| Year | Value | | 2021 | 1,505,399,373.493 | | 2020 | 1,437,751,517.2522 | | 2019 | 1,467,036,932.8664 | | 2018 | 1,457,210,983.4125 | | 2017 | 1,313,702,710.9392 | | 2016 | 1,226,274,110.7092 | | 2015 | 1,178,042,357.3807 | | 2014 | 1,203,350,922.6079 | | 2013 | 1,169,175,418.7187 | | 2012 | 994,282,594.15912 | | 2011 | 870,355,030.49919 | | 2010 | 775,140,217.79621 | | 2009 | 681,789,327.24556 | | 2008 | 658,203,517.53518 | | 2007 | 606,686,951.94711 | | 2006 | 555,565,358.41495 | | 2005 | 503,386,422.14211 | | 2004 | 432,839,682.48901 | | 2003 | 382,177,670.88898 | | 2002 | 311,253,956.08686 | | 2001 | 374,868,324.79392 | | 2000 | 381,679,813.87012 | | 1999 | 426,539,366.16819 | | 1998 | 410,001,363.65433 | | 1997 | 476,184,178.91493 | | 1996 | 462,595,141.62712 | | 1995 | 425,768,161.44543 | | 1994 | 372,280,658.45788 | | 1993 | 277,797,710.06184 | | 1992 | 242,160,538.42814 | | 1991 | 204,433,223.1811 | | 1990 | 196,980,012.74088 | | 1989 | 154,060,409.52268 | | 1988 | 156,830,994.17308 | | 1987 | 137,793,142.92924 | | 1986 | 131,934,212.70595 | | 1985 | 148,927,714.51862 | | 1984 | 162,045,326.92589 | | 1983 | 163,800,112.4098 | | 1982 | 174,636,462.00492 | | 1981 | 180,303,654.43298 | | 1980 | 158,817,459.8834 |
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