| Year | Value | | 2022 | 3,996,520,937 | | 2021 | 3,966,056,767 | | 2020 | 3,933,158,305 | | 2019 | 3,894,742,852 | | 2018 | 3,854,339,551 | | 2017 | 3,812,480,158 | | 2016 | 3,769,467,536 | | 2015 | 3,725,936,179 | | 2014 | 3,682,046,200 | | 2013 | 3,637,693,261 | | 2012 | 3,593,229,103 | | 2011 | 3,549,006,926 | | 2010 | 3,506,552,433 | | 2009 | 3,464,049,428 | | 2008 | 3,421,476,642 | | 2007 | 3,378,947,510 | | 2006 | 3,337,082,631 | | 2005 | 3,295,335,349 | | 2004 | 3,254,008,892 | | 2003 | 3,212,874,298 | | 2002 | 3,171,797,210 | | 2001 | 3,130,462,948 | | 2000 | 3,088,840,111 | | 1999 | 3,047,094,726 | | 1998 | 3,005,160,632 | | 1997 | 2,962,649,894 | | 1996 | 2,919,778,375 | | 1995 | 2,876,848,400 | | 1994 | 2,833,979,667 | | 1993 | 2,790,724,377 | | 1992 | 2,746,958,057 | | 1991 | 2,702,447,082 | | 1990 | 2,657,088,912 | | 1989 | 2,610,871,610 | | 1988 | 2,565,533,992 | | 1987 | 2,520,326,609 | | 1986 | 2,475,527,649 | | 1985 | 2,432,166,930 | | 1984 | 2,390,289,958 | | 1983 | 2,349,250,583 | | 1982 | 2,307,958,861 | | 1981 | 2,266,736,534 | | 1980 | 2,226,951,190 | | 1979 | 2,188,257,357 | | 1978 | 2,150,069,648 | | 1977 | 2,112,794,437 | | 1976 | 2,076,125,439 | | 1975 | 2,039,262,320 | | 1974 | 2,001,677,408 | | 1973 | 1,963,091,007 | | 1972 | 1,924,210,184 | | 1971 | 1,885,822,143 | | 1970 | 1,846,555,425 | | 1969 | 1,808,321,116 | | 1968 | 1,770,747,665 | | 1967 | 1,734,618,845 | | 1966 | 1,699,543,243 | | 1965 | 1,664,253,356 | | 1964 | 1,630,147,272 | | 1963 | 1,596,304,831 | | 1962 | 1,562,679,057 | | 1961 | 1,535,308,749 | | 1960 | 1,514,859,642 |
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