Year | Value | 2022 | 40,928,486 | 2021 | 40,295,863 | 2020 | 39,605,450 | 2019 | 38,834,681 | 2018 | 38,047,715 | 2017 | 37,298,236 | 2016 | 36,866,878 | 2015 | 36,223,620 | 2014 | 35,197,669 | 2013 | 34,367,596 | 2012 | 33,625,925 | 2011 | 32,906,089 | 2010 | 32,219,542 | 2009 | 31,565,718 | 2008 | 30,923,017 | 2007 | 30,305,632 | 2006 | 29,733,162 | 2005 | 29,182,849 | 2004 | 28,644,683 | 2003 | 28,114,892 | 2002 | 27,595,063 | 2001 | 27,094,742 | 2000 | 26,632,535 | 1999 | 26,154,780 | 1998 | 25,645,116 | 1997 | 25,110,106 | 1996 | 24,549,143 | 1995 | 23,966,258 | 1994 | 23,366,441 | 1993 | 22,760,041 | 1992 | 22,149,069 | 1991 | 21,500,345 | 1990 | 20,751,091 | 1989 | 19,916,306 | 1988 | 19,060,395 | 1987 | 18,218,230 | 1986 | 17,405,783 | 1985 | 16,664,513 | 1984 | 16,085,257 | 1983 | 15,589,081 | 1982 | 15,125,290 | 1981 | 14,690,304 | 1980 | 14,267,724 | 1979 | 13,874,719 | 1978 | 13,493,610 | 1977 | 13,118,210 | 1976 | 12,755,296 | 1975 | 12,401,521 | 1974 | 12,049,255 | 1973 | 11,700,924 | 1972 | 11,358,457 | 1971 | 11,024,920 | 1970 | 10,694,063 | 1969 | 10,353,778 | 1968 | 10,017,952 | 1967 | 9,690,173 | 1966 | 9,372,831 | 1965 | 9,065,565 | 1964 | 8,768,384 | 1963 | 8,483,449 | 1962 | 8,210,020 | 1961 | 7,949,880 | 1960 | 7,701,664 |
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