Year | Value | 2022 | 44,346,776 | 2021 | 44,539,846 | 2020 | 44,938,579 | 2019 | 45,110,747 | 2018 | 45,192,371 | 2017 | 45,120,833 | 2016 | 44,902,910 | 2015 | 44,652,105 | 2014 | 44,464,489 | 2013 | 44,346,788 | 2012 | 44,353,886 | 2011 | 44,469,932 | 2010 | 44,647,559 | 2009 | 44,759,314 | 2008 | 44,783,957 | 2007 | 44,628,393 | 2006 | 44,369,414 | 2005 | 44,054,652 | 2004 | 43,838,994 | 2003 | 43,802,219 | 2002 | 43,940,574 | 2001 | 44,275,673 | 2000 | 44,680,166 | 1999 | 44,965,531 | 1998 | 45,142,847 | 1997 | 45,211,489 | 1996 | 44,999,790 | 1995 | 44,778,013 | 1994 | 44,792,217 | 1993 | 44,831,273 | 1992 | 44,751,659 | 1991 | 44,686,854 | 1990 | 44,507,589 | 1989 | 44,120,849 | 1988 | 43,674,625 | 1987 | 43,248,070 | 1986 | 42,805,920 | 1985 | 42,325,607 | 1984 | 41,841,661 | 1983 | 41,338,092 | 1982 | 40,767,062 | 1981 | 40,345,678 | 1980 | 39,860,198 | 1979 | 39,230,558 | 1978 | 38,875,384 | 1977 | 38,806,818 | 1976 | 38,361,680 | 1975 | 37,254,931 | 1974 | 36,059,547 | 1973 | 34,849,618 | 1972 | 33,421,860 | 1971 | 32,174,952 | 1970 | 31,632,091 | 1969 | 31,396,068 | 1968 | 30,870,421 | 1967 | 30,350,250 | 1966 | 29,981,975 | 1965 | 29,621,176 | 1964 | 29,255,267 | 1963 | 28,959,064 | 1962 | 28,733,287 | 1961 | 28,563,431 | 1960 | 28,482,038 |
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