| Year | Value | | 2022 | 6,888,752,077 | | 2021 | 7,047,292,228 | | 2020 | 6,855,191,391 | | 2019 | 6,803,240,808 | | 2018 | 6,470,061,239 | | 2017 | 6,334,062,490 | | 2016 | 6,100,149,622 | | 2015 | 5,800,445,669 | | 2014 | 5,651,725,351 | | 2013 | 5,371,789,946 | | 2012 | 4,998,074,023 | | 2011 | 4,659,699,911 | | 2010 | 4,113,650,827 | | 2009 | 3,480,398,655 | | 2008 | 2,913,494,041 | | 2007 | 2,309,745,093 | | 2006 | 1,780,754,424 | | 2005 | 1,322,416,649 | | 2004 | 955,075,746 | | 2003 | 680,120,909 | | 2002 | 494,718,954 | | 2001 | 350,776,868 | | 2000 | 221,769,226 | | 1999 | 121,157,258 | | 1998 | 66,090,121 | | 1997 | 39,853,465 | | 1996 | 21,502,304 | | 1995 | 11,980,748 | | 1994 | 5,981,059 | | 1993 | 2,833,835 | | 1992 | 1,431,271 | | 1991 | 704,927 | | 1990 | 340,158 | | 1989 | 146,000 | | 1988 | 73,773 | | 1987 | 38,326 | | 1986 | 16,534 | | 1985 | 2,029 | | 1984 | 1,750 |
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