| Year | Value | | 2022 | 2,325,542,891 | | 2021 | 2,322,606,486 | | 2020 | 2,317,277,554 | | 2019 | 2,309,491,804 | | 2018 | 2,298,987,594 | | 2017 | 2,286,627,723 | | 2016 | 2,272,340,223 | | 2015 | 2,258,406,242 | | 2014 | 2,244,043,359 | | 2013 | 2,228,485,037 | | 2012 | 2,212,381,413 | | 2011 | 2,196,512,073 | | 2010 | 2,182,768,187 | | 2009 | 2,169,857,353 | | 2008 | 2,156,046,215 | | 2007 | 2,142,132,712 | | 2006 | 2,128,519,993 | | 2005 | 2,114,895,075 | | 2004 | 2,101,411,095 | | 2003 | 2,088,091,467 | | 2002 | 2,074,581,734 | | 2001 | 2,060,709,239 | | 2000 | 2,046,026,051 | | 1999 | 2,030,612,791 | | 1998 | 2,013,531,302 | | 1997 | 1,995,080,443 | | 1996 | 1,975,855,844 | | 1995 | 1,956,331,335 | | 1994 | 1,936,398,016 | | 1993 | 1,915,623,786 | | 1992 | 1,894,353,796 | | 1991 | 1,871,805,819 | | 1990 | 1,847,821,462 | | 1989 | 1,822,788,469 | | 1988 | 1,796,192,544 | | 1987 | 1,768,376,867 | | 1986 | 1,740,698,024 | | 1985 | 1,714,481,164 | | 1984 | 1,689,771,008 | | 1983 | 1,665,773,694 | | 1982 | 1,640,893,480 | | 1981 | 1,615,957,004 | | 1980 | 1,593,099,029 | | 1979 | 1,570,920,160 | | 1978 | 1,548,637,582 | | 1977 | 1,526,366,884 | | 1976 | 1,503,509,107 | | 1975 | 1,479,273,067 | | 1974 | 1,453,964,650 | | 1973 | 1,426,459,153 | | 1972 | 1,397,522,486 | | 1971 | 1,367,659,433 | | 1970 | 1,336,152,939 | | 1969 | 1,305,235,738 | | 1968 | 1,275,030,950 | | 1967 | 1,246,291,107 | | 1966 | 1,218,319,662 | | 1965 | 1,189,485,776 | | 1964 | 1,163,376,707 | | 1963 | 1,137,971,547 | | 1962 | 1,112,142,897 | | 1961 | 1,097,728,985 | | 1960 | 1,095,548,725 |
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