| Year | Value | | 2022 | 1,417,173,173 | | 2021 | 1,407,563,842 | | 2020 | 1,396,387,127 | | 2019 | 1,383,112,050 | | 2018 | 1,369,003,306 | | 2017 | 1,354,195,680 | | 2016 | 1,338,636,340 | | 2015 | 1,322,866,505 | | 2014 | 1,307,246,509 | | 2013 | 1,291,132,063 | | 2012 | 1,274,487,215 | | 2011 | 1,257,621,191 | | 2010 | 1,240,613,620 | | 2009 | 1,223,640,160 | | 2008 | 1,206,734,806 | | 2007 | 1,189,691,809 | | 2006 | 1,172,373,788 | | 2005 | 1,154,638,713 | | 2004 | 1,136,264,583 | | 2003 | 1,117,415,123 | | 2002 | 1,098,313,039 | | 2001 | 1,078,970,907 | | 2000 | 1,059,633,675 | | 1999 | 1,040,500,054 | | 1998 | 1,021,434,576 | | 1997 | 1,002,335,230 | | 1996 | 983,281,218 | | 1995 | 964,279,129 | | 1994 | 945,261,958 | | 1993 | 926,351,297 | | 1992 | 907,574,049 | | 1991 | 888,941,756 | | 1990 | 870,452,165 | | 1989 | 852,012,673 | | 1988 | 833,729,681 | | 1987 | 815,716,125 | | 1986 | 797,878,993 | | 1985 | 780,242,084 | | 1984 | 762,895,156 | | 1983 | 745,826,546 | | 1982 | 729,169,466 | | 1981 | 712,869,298 | | 1980 | 696,828,385 | | 1979 | 681,248,383 | | 1978 | 666,267,760 | | 1977 | 651,685,628 | | 1976 | 637,451,448 | | 1975 | 623,524,219 | | 1974 | 609,721,951 | | 1973 | 596,107,483 | | 1972 | 582,837,973 | | 1971 | 569,999,178 | | 1970 | 557,501,301 | | 1969 | 545,314,670 | | 1968 | 533,431,909 | | 1967 | 521,987,069 | | 1966 | 510,992,617 | | 1965 | 500,114,346 | | 1964 | 489,059,309 | | 1963 | 477,933,619 | | 1962 | 467,024,193 | | 1961 | 456,351,876 | | 1960 | 445,954,579 |
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