| Year | Value | | 2022 | 3,194,364,359 | | 2021 | 3,198,703,003 | | 2020 | 3,199,079,465 | | 2019 | 3,196,766,085 | | 2018 | 3,193,050,690 | | 2017 | 3,188,205,926 | | 2016 | 3,182,122,603 | | 2015 | 3,175,682,926 | | 2014 | 3,168,663,169 | | 2013 | 3,160,044,504 | | 2012 | 3,149,955,431 | | 2011 | 3,138,710,857 | | 2010 | 3,128,061,519 | | 2009 | 3,119,288,193 | | 2008 | 3,110,545,756 | | 2007 | 3,101,740,946 | | 2006 | 3,091,828,170 | | 2005 | 3,081,337,594 | | 2004 | 3,070,194,630 | | 2003 | 3,057,834,113 | | 2002 | 3,044,111,277 | | 2001 | 3,028,996,697 | | 2000 | 3,010,802,168 | | 1999 | 2,989,272,737 | | 1998 | 2,966,235,849 | | 1997 | 2,941,923,229 | | 1996 | 2,916,317,887 | | 1995 | 2,889,534,090 | | 1994 | 2,862,309,506 | | 1993 | 2,834,249,730 | | 1992 | 2,805,043,727 | | 1991 | 2,774,810,944 | | 1990 | 2,743,073,351 | | 1989 | 2,709,325,379 | | 1988 | 2,675,818,679 | | 1987 | 2,641,868,126 | | 1986 | 2,607,617,422 | | 1985 | 2,574,235,872 | | 1984 | 2,541,674,355 | | 1983 | 2,509,347,762 | | 1982 | 2,475,635,405 | | 1981 | 2,443,198,370 | | 1980 | 2,413,923,031 | | 1979 | 2,385,010,299 | | 1978 | 2,355,551,632 | | 1977 | 2,323,805,987 | | 1976 | 2,289,541,033 | | 1975 | 2,254,502,671 | | 1974 | 2,216,982,812 | | 1973 | 2,179,297,573 | | 1972 | 2,139,765,976 | | 1971 | 2,099,669,611 | | 1970 | 2,057,695,062 | | 1969 | 2,015,421,744 | | 1968 | 1,973,843,745 | | 1967 | 1,933,844,687 | | 1966 | 1,894,937,211 | | 1965 | 1,855,348,795 | | 1964 | 1,817,849,258 | | 1963 | 1,786,064,526 | | 1962 | 1,753,930,979 | | 1961 | 1,731,250,847 | | 1960 | 1,718,763,025 |
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