| Year | Value | | 2022 | 1,231,741,605 | | 2021 | 1,229,549,240 | | 2020 | 1,225,655,988 | | 2019 | 1,220,377,717 | | 2018 | 1,214,643,925 | | 2017 | 1,208,159,535 | | 2016 | 1,201,121,295 | | 2015 | 1,193,951,047 | | 2014 | 1,186,451,809 | | 2013 | 1,178,059,778 | | 2012 | 1,168,916,945 | | 2011 | 1,158,888,970 | | 2010 | 1,148,178,110 | | 2009 | 1,137,417,875 | | 2008 | 1,126,735,715 | | 2007 | 1,116,200,093 | | 2006 | 1,105,229,632 | | 2005 | 1,093,238,970 | | 2004 | 1,080,376,752 | | 2003 | 1,066,731,999 | | 2002 | 1,052,110,557 | | 2001 | 1,036,969,034 | | 2000 | 1,021,102,090 | | 1999 | 1,004,753,875 | | 1998 | 988,239,052 | | 1997 | 971,772,863 | | 1996 | 955,366,262 | | 1995 | 938,872,109 | | 1994 | 922,044,947 | | 1993 | 904,861,344 | | 1992 | 887,623,354 | | 1991 | 870,938,251 | | 1990 | 855,082,152 | | 1989 | 839,224,424 | | 1988 | 823,233,968 | | 1987 | 807,547,058 | | 1986 | 792,028,876 | | 1985 | 776,482,026 | | 1984 | 760,912,971 | | 1983 | 745,484,158 | | 1982 | 730,342,209 | | 1981 | 715,965,931 | | 1980 | 703,140,507 | | 1979 | 690,785,785 | | 1978 | 678,690,646 | | 1977 | 666,725,971 | | 1976 | 654,990,194 | | 1975 | 643,433,638 | | 1974 | 631,774,376 | | 1973 | 619,912,023 | | 1972 | 608,123,662 | | 1971 | 597,402,203 | | 1970 | 586,434,717 | | 1969 | 574,658,688 | | 1968 | 562,919,379 | | 1967 | 551,488,689 | | 1966 | 540,464,251 | | 1965 | 529,601,452 | | 1964 | 518,625,327 | | 1963 | 507,641,046 | | 1962 | 496,878,059 | | 1961 | 486,362,201 | | 1960 | 475,809,948 |
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