| Year | Value | | 2022 | 2,375,162,207 | | 2021 | 2,370,189,840 | | 2020 | 2,363,934,334 | | 2019 | 2,353,856,866 | | 2018 | 2,341,383,691 | | 2017 | 2,327,132,966 | | 2016 | 2,310,721,864 | | 2015 | 2,294,507,020 | | 2014 | 2,278,232,287 | | 2013 | 2,261,274,500 | | 2012 | 2,243,776,727 | | 2011 | 2,225,992,094 | | 2010 | 2,210,203,758 | | 2009 | 2,195,169,711 | | 2008 | 2,179,914,111 | | 2007 | 2,164,155,292 | | 2006 | 2,148,405,823 | | 2005 | 2,132,517,760 | | 2004 | 2,116,651,449 | | 2003 | 2,100,610,344 | | 2002 | 2,083,969,920 | | 2001 | 2,066,530,023 | | 2000 | 2,048,148,696 | | 1999 | 2,028,993,034 | | 1998 | 2,008,680,261 | | 1997 | 1,986,768,093 | | 1996 | 1,964,042,971 | | 1995 | 1,940,892,820 | | 1994 | 1,917,553,356 | | 1993 | 1,893,594,516 | | 1992 | 1,869,453,624 | | 1991 | 1,844,603,995 | | 1990 | 1,818,247,576 | | 1989 | 1,791,156,275 | | 1988 | 1,763,555,005 | | 1987 | 1,735,427,884 | | 1986 | 1,707,611,028 | | 1985 | 1,681,267,266 | | 1984 | 1,656,258,164 | | 1983 | 1,631,735,726 | | 1982 | 1,605,925,794 | | 1981 | 1,580,048,609 | | 1980 | 1,556,403,010 | | 1979 | 1,533,514,709 | | 1978 | 1,510,060,320 | | 1977 | 1,486,953,865 | | 1976 | 1,464,087,148 | | 1975 | 1,439,944,265 | | 1974 | 1,413,718,269 | | 1973 | 1,384,704,173 | | 1972 | 1,354,211,283 | | 1971 | 1,322,732,627 | | 1970 | 1,288,490,485 | | 1969 | 1,255,933,616 | | 1968 | 1,224,255,729 | | 1967 | 1,194,567,141 | | 1966 | 1,166,227,679 | | 1965 | 1,136,927,045 | | 1964 | 1,110,819,272 | | 1963 | 1,085,398,906 | | 1962 | 1,059,600,211 | | 1961 | 1,045,203,037 | | 1960 | 1,043,333,636 |
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