| Year | Value | | 2022 | 3,426,158,125 | | 2021 | 3,432,474,560 | | 2020 | 3,435,260,303 | | 2019 | 3,434,378,689 | | 2018 | 3,432,156,656 | | 2017 | 3,428,513,887 | | 2016 | 3,423,468,287 | | 2015 | 3,417,826,193 | | 2014 | 3,411,550,371 | | 2013 | 3,403,543,721 | | 2012 | 3,394,078,717 | | 2011 | 3,383,532,088 | | 2010 | 3,374,247,814 | | 2009 | 3,367,104,650 | | 2008 | 3,359,819,881 | | 2007 | 3,352,399,787 | | 2006 | 3,343,986,870 | | 2005 | 3,335,219,778 | | 2004 | 3,326,266,142 | | 2003 | 3,316,253,966 | | 2002 | 3,305,022,769 | | 2001 | 3,292,632,600 | | 2000 | 3,276,590,093 | | 1999 | 3,255,852,737 | | 1998 | 3,233,586,837 | | 1997 | 3,210,004,820 | | 1996 | 3,185,075,930 | | 1995 | 3,159,036,336 | | 1994 | 3,132,644,541 | | 1993 | 3,105,299,927 | | 1992 | 3,076,592,499 | | 1991 | 3,046,930,445 | | 1990 | 3,015,951,177 | | 1989 | 2,982,906,394 | | 1988 | 2,950,001,799 | | 1987 | 2,917,033,575 | | 1986 | 2,883,887,508 | | 1985 | 2,851,340,118 | | 1984 | 2,819,351,212 | | 1983 | 2,787,635,724 | | 1982 | 2,754,517,175 | | 1981 | 2,722,679,659 | | 1980 | 2,694,239,077 | | 1979 | 2,665,874,645 | | 1978 | 2,636,814,591 | | 1977 | 2,605,496,407 | | 1976 | 2,571,572,486 | | 1975 | 2,536,825,022 | | 1974 | 2,499,872,294 | | 1973 | 2,462,770,561 | | 1972 | 2,423,730,946 | | 1971 | 2,384,038,046 | | 1970 | 2,342,292,204 | | 1969 | 2,301,148,668 | | 1968 | 2,260,742,254 | | 1967 | 2,222,101,628 | | 1966 | 2,184,556,338 | | 1965 | 2,146,012,318 | | 1964 | 2,109,406,396 | | 1963 | 2,078,318,202 | | 1962 | 2,046,772,381 | | 1961 | 2,024,407,072 | | 1960 | 2,012,191,086 |
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