Year | Value | 2022 | 40,766,158 | 2021 | 40,594,828 | 2020 | 40,754,319 | 2019 | 40,875,938 | 2018 | 41,011,709 | 2017 | 41,158,071 | 2016 | 41,279,914 | 2015 | 41,333,966 | 2014 | 41,452,934 | 2013 | 41,676,598 | 2012 | 41,979,887 | 2011 | 42,341,809 | 2010 | 42,727,222 | 2009 | 42,971,048 | 2008 | 43,077,690 | 2007 | 43,032,480 | 2006 | 42,887,945 | 2005 | 42,703,620 | 2004 | 42,552,625 | 2003 | 42,453,534 | 2002 | 42,444,878 | 2001 | 42,537,762 | 2000 | 42,701,796 | 1999 | 42,849,317 | 1998 | 42,870,971 | 1997 | 42,772,984 | 1996 | 42,599,009 | 1995 | 42,434,931 | 1994 | 42,382,067 | 1993 | 42,510,321 | 1992 | 42,792,698 | 1991 | 43,213,415 | 1990 | 43,614,209 | 1989 | 43,866,479 | 1988 | 44,026,434 | 1987 | 44,119,826 | 1986 | 43,984,976 | 1985 | 43,863,598 | 1984 | 44,009,226 | 1983 | 44,198,129 | 1982 | 44,293,840 | 1981 | 44,422,382 | 1980 | 44,395,331 | 1979 | 44,055,745 | 1978 | 43,585,507 | 1977 | 43,098,701 | 1976 | 42,587,131 | 1975 | 42,051,318 | 1974 | 41,514,506 | 1973 | 41,008,620 | 1972 | 40,490,578 | 1971 | 40,118,758 | 1970 | 39,614,124 | 1969 | 39,027,696 | 1968 | 38,682,336 | 1967 | 38,611,763 | 1966 | 38,167,272 | 1965 | 37,070,906 | 1964 | 35,904,121 | 1963 | 34,716,645 | 1962 | 33,335,021 | 1961 | 32,130,072 | 1960 | 31,652,267 |
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