| Year | Value | | 2022 | 1,395,386,809 | | 2021 | 1,391,872,877 | | 2020 | 1,387,353,537 | | 2019 | 1,380,991,046 | | 2018 | 1,372,792,134 | | 2017 | 1,363,656,750 | | 2016 | 1,353,801,186 | | 2015 | 1,343,841,840 | | 2014 | 1,333,296,422 | | 2013 | 1,322,307,357 | | 2012 | 1,310,906,768 | | 2011 | 1,299,677,280 | | 2010 | 1,289,610,368 | | 2009 | 1,280,137,782 | | 2008 | 1,270,403,802 | | 2007 | 1,260,910,761 | | 2006 | 1,252,127,012 | | 2005 | 1,242,885,197 | | 2004 | 1,233,208,138 | | 2003 | 1,223,530,038 | | 2002 | 1,213,631,503 | | 2001 | 1,203,363,620 | | 2000 | 1,192,592,231 | | 1999 | 1,181,278,733 | | 1998 | 1,169,439,983 | | 1997 | 1,156,857,906 | | 1996 | 1,143,804,320 | | 1995 | 1,130,676,622 | | 1994 | 1,117,405,955 | | 1993 | 1,103,704,046 | | 1992 | 1,089,931,422 | | 1991 | 1,075,563,177 | | 1990 | 1,060,041,802 | | 1989 | 1,042,996,249 | | 1988 | 1,026,375,297 | | 1987 | 1,009,189,328 | | 1986 | 992,146,076 | | 1985 | 976,164,884 | | 1984 | 961,129,967 | | 1983 | 946,340,838 | | 1982 | 931,087,500 | | 1981 | 915,930,372 | | 1980 | 901,784,811 | | 1979 | 887,728,316 | | 1978 | 873,429,961 | | 1977 | 859,238,687 | | 1976 | 845,205,542 | | 1975 | 830,548,860 | | 1974 | 815,060,365 | | 1973 | 798,364,522 | | 1972 | 780,968,946 | | 1971 | 763,184,650 | | 1970 | 744,675,368 | | 1969 | 726,523,466 | | 1968 | 708,739,225 | | 1967 | 691,856,101 | | 1966 | 675,526,691 | | 1965 | 658,893,706 | | 1964 | 643,677,342 | | 1963 | 628,734,886 | | 1962 | 613,656,389 | | 1961 | 604,471,600 | | 1960 | 601,764,396 |
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