| Year | Value | | 2022 | 3,400,360,554 | | 2021 | 3,371,850,389 | | 2020 | 3,338,658,281 | | 2019 | 3,302,629,413 | | 2018 | 3,264,941,899 | | 2017 | 3,226,281,920 | | 2016 | 3,186,707,316 | | 2015 | 3,147,183,883 | | 2014 | 3,107,189,927 | | 2013 | 3,066,620,496 | | 2012 | 3,025,923,099 | | 2011 | 2,985,374,455 | | 2010 | 2,945,690,065 | | 2009 | 2,907,185,562 | | 2008 | 2,869,390,529 | | 2007 | 2,832,298,943 | | 2006 | 2,795,669,611 | | 2005 | 2,758,573,186 | | 2004 | 2,721,163,922 | | 2003 | 2,683,670,435 | | 2002 | 2,646,100,394 | | 2001 | 2,608,358,328 | | 2000 | 2,570,379,920 | | 1999 | 2,532,317,404 | | 1998 | 2,493,932,094 | | 1997 | 2,454,993,666 | | 1996 | 2,415,820,962 | | 1995 | 2,376,671,875 | | 1994 | 2,337,531,582 | | 1993 | 2,298,174,250 | | 1992 | 2,258,641,113 | | 1991 | 2,218,765,111 | | 1990 | 2,177,893,197 | | 1989 | 2,136,435,827 | | 1988 | 2,094,938,848 | | 1987 | 2,053,285,853 | | 1986 | 2,011,911,065 | | 1985 | 1,971,873,798 | | 1984 | 1,933,160,463 | | 1983 | 1,895,222,785 | | 1982 | 1,857,206,622 | | 1981 | 1,819,472,419 | | 1980 | 1,783,409,762 | | 1979 | 1,748,464,560 | | 1978 | 1,714,105,438 | | 1977 | 1,680,483,256 | | 1976 | 1,647,424,728 | | 1975 | 1,614,215,473 | | 1974 | 1,580,602,441 | | 1973 | 1,546,163,741 | | 1972 | 1,511,581,641 | | 1971 | 1,477,720,755 | | 1970 | 1,443,716,651 | | 1969 | 1,409,863,006 | | 1968 | 1,376,537,556 | | 1967 | 1,344,452,921 | | 1966 | 1,313,355,879 | | 1965 | 1,282,335,319 | | 1964 | 1,252,817,134 | | 1963 | 1,223,697,348 | | 1962 | 1,194,802,214 | | 1961 | 1,172,211,261 | | 1960 | 1,156,429,907 |
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