| Year | Value | | 2022 | 1,526,796,321 | | 2021 | 1,506,866,350 | | 2020 | 1,485,116,164 | | 2019 | 1,461,305,261 | | 2018 | 1,435,285,442 | | 2017 | 1,407,856,330 | | 2016 | 1,379,098,827 | | 2015 | 1,350,634,954 | | 2014 | 1,322,067,079 | | 2013 | 1,292,927,226 | | 2012 | 1,263,735,853 | | 2011 | 1,235,000,743 | | 2010 | 1,207,189,543 | | 2009 | 1,178,792,791 | | 2008 | 1,150,058,170 | | 2007 | 1,121,482,670 | | 2006 | 1,093,489,269 | | 2005 | 1,065,741,907 | | 2004 | 1,038,137,963 | | 2003 | 1,011,155,699 | | 2002 | 984,642,654 | | 2001 | 958,549,185 | | 2000 | 933,800,525 | | 1999 | 911,531,926 | | 1998 | 889,215,439 | | 1997 | 866,834,499 | | 1996 | 844,683,428 | | 1995 | 822,992,345 | | 1994 | 801,677,006 | | 1993 | 780,388,162 | | 1992 | 759,346,779 | | 1991 | 738,071,350 | | 1990 | 717,090,823 | | 1989 | 697,609,410 | | 1988 | 677,163,243 | | 1987 | 656,217,916 | | 1986 | 635,702,503 | | 1985 | 615,964,095 | | 1984 | 596,941,686 | | 1983 | 578,439,177 | | 1982 | 560,297,994 | | 1981 | 540,954,263 | | 1980 | 522,481,462 | | 1979 | 504,504,088 | | 1978 | 486,962,901 | | 1977 | 472,651,258 | | 1976 | 461,136,667 | | 1975 | 449,563,814 | | 1974 | 437,711,164 | | 1973 | 425,610,232 | | 1972 | 414,354,729 | | 1971 | 403,974,511 | | 1970 | 393,449,659 | | 1969 | 382,963,395 | | 1968 | 372,645,408 | | 1967 | 362,718,328 | | 1966 | 353,135,427 | | 1965 | 343,808,096 | | 1964 | 335,043,975 | | 1963 | 321,171,278 | | 1962 | 307,635,081 | | 1961 | 296,453,956 | | 1960 | 287,474,877 |
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