| Year | Value | | 2022 | 6,678,280,291 | | 2021 | 6,618,837,270 | | 2020 | 6,549,996,251 | | 2019 | 6,476,092,964 | | 2018 | 6,399,036,689 | | 2017 | 6,320,334,263 | | 2016 | 6,240,319,049 | | 2015 | 6,160,876,270 | | 2014 | 6,081,160,760 | | 2013 | 6,000,646,643 | | 2012 | 5,919,873,728 | | 2011 | 5,839,474,111 | | 2010 | 5,760,811,387 | | 2009 | 5,684,268,515 | | 2008 | 5,609,097,906 | | 2007 | 5,535,250,735 | | 2006 | 5,462,498,035 | | 2005 | 5,389,050,292 | | 2004 | 5,315,125,594 | | 2003 | 5,241,165,329 | | 2002 | 5,167,128,185 | | 2001 | 5,092,597,797 | | 2000 | 5,017,754,094 | | 1999 | 4,942,884,760 | | 1998 | 4,867,621,521 | | 1997 | 4,791,350,281 | | 1996 | 4,714,457,805 | | 1995 | 4,637,327,736 | | 1994 | 4,560,256,953 | | 1993 | 4,482,824,315 | | 1992 | 4,404,987,014 | | 1991 | 4,326,435,528 | | 1990 | 4,246,144,171 | | 1989 | 4,163,156,247 | | 1988 | 4,081,930,110 | | 1987 | 4,000,290,312 | | 1986 | 3,919,271,237 | | 1985 | 3,840,450,224 | | 1984 | 3,763,902,990 | | 1983 | 3,688,958,642 | | 1982 | 3,613,996,536 | | 1981 | 3,539,933,936 | | 1980 | 3,469,528,886 | | 1979 | 3,401,137,532 | | 1978 | 3,333,664,297 | | 1977 | 3,267,883,331 | | 1976 | 3,203,257,143 | | 1975 | 3,138,386,170 | | 1974 | 3,073,026,310 | | 1973 | 3,006,125,509 | | 1972 | 2,938,844,718 | | 1971 | 2,872,595,869 | | 1970 | 2,805,572,550 | | 1969 | 2,738,979,549 | | 1968 | 2,673,666,819 | | 1967 | 2,610,858,879 | | 1966 | 2,550,048,939 | | 1965 | 2,489,218,929 | | 1964 | 2,431,354,529 | | 1963 | 2,374,537,275 | | 1962 | 2,318,172,647 | | 1961 | 2,274,049,905 | | 1960 | 2,243,178,704 |
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