| Year | Value | | 2021 | 20,288,249,832,237 | | 2020 | 17,982,356,496,560 | | 2019 | 18,741,891,787,798 | | 2018 | 19,054,804,854,421 | | 2017 | 17,830,438,667,717 | | 2016 | 16,809,215,039,168 | | 2015 | 16,849,189,685,975 | | 2014 | 19,546,445,349,593 | | 2013 | 19,257,770,715,055 | | 2012 | 18,434,206,605,192 | | 2011 | 19,173,643,693,935 | | 2010 | 17,358,203,963,855 | | 2009 | 16,853,756,565,407 | | 2008 | 19,152,496,517,880 | | 2007 | 17,660,392,184,088 | | 2006 | 15,175,762,282,088 | | 2005 | 14,052,549,540,516 | | 2004 | 13,201,563,669,614 | | 2003 | 11,290,827,063,932 | | 2002 | 9,278,177,601,033.1 | | 2001 | 8,505,808,795,378.9 | | 2000 | 8,460,471,458,664.9 | | 1999 | 9,008,493,621,429.1 | | 1998 | 9,093,065,974,323.9 | | 1997 | 8,774,102,572,662.8 | | 1996 | 9,206,569,404,616.6 | | 1995 | 8,972,574,690,789 | | 1994 | 7,811,957,712,777 | | 1993 | 7,418,914,209,702.7 | | 1992 | 8,130,987,960,448.9 | | 1991 | 7,463,577,632,135.5 | | 1990 | 7,211,478,730,557.4 | | 1989 | 5,830,993,417,826 | | 1988 | 5,717,003,948,687.7 | | 1987 | 5,123,331,050,725.9 | | 1986 | 4,147,411,021,706.5 | | 1985 | 3,013,249,655,384.7 | | 1984 | 2,909,989,715,738.3 | | 1983 | 3,025,637,034,760.9 | | 1982 | 3,118,997,725,079.6 | | 1981 | 3,256,947,418,988.8 | | 1980 | 3,702,969,250,434 | | 1979 | 3,293,357,624,331.8 | | 1978 | 2,704,673,865,513.5 | | 1977 | 2,212,921,703,216.9 | | 1976 | 1,963,126,247,566.1 | | 1975 | 1,891,482,612,164.1 | | 1974 | 1,624,960,189,398.3 | | 1973 | 1,453,012,396,601 | | 1972 | 1,146,319,838,693.7 | | 1971 | 959,026,015,126.71 | | 1970 | 853,375,977,613.32 |
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