Year | Value | 2022 | 46,011,661 | 2021 | 46,046,146 | 2020 | 46,196,889 | 2019 | 46,187,065 | 2018 | 46,102,504 | 2017 | 45,876,358 | 2016 | 45,595,911 | 2015 | 45,302,012 | 2014 | 45,137,361 | 2013 | 45,149,017 | 2012 | 45,299,785 | 2011 | 45,601,300 | 2010 | 45,987,089 | 2009 | 46,202,788 | 2008 | 46,319,659 | 2007 | 46,304,035 | 2006 | 46,040,796 | 2005 | 45,775,958 | 2004 | 45,774,596 | 2003 | 45,802,686 | 2002 | 45,721,275 | 2001 | 45,681,297 | 2000 | 45,563,204 | 1999 | 45,176,118 | 1998 | 44,651,572 | 1997 | 44,119,810 | 1996 | 43,553,720 | 1995 | 42,952,591 | 1994 | 42,329,886 | 1993 | 41,692,665 | 1992 | 41,010,855 | 1991 | 40,454,117 | 1990 | 39,850,690 | 1989 | 39,182,439 | 1988 | 38,808,719 | 1987 | 38,725,791 | 1986 | 38,265,176 | 1985 | 37,117,938 | 1984 | 35,893,538 | 1983 | 34,684,378 | 1982 | 33,265,932 | 1981 | 32,048,419 | 1980 | 31,578,259 | 1979 | 31,337,784 | 1978 | 30,811,639 | 1977 | 30,288,783 | 1976 | 29,933,639 | 1975 | 29,582,345 | 1974 | 29,195,502 | 1973 | 28,868,830 | 1972 | 28,612,604 | 1971 | 28,399,748 | 1970 | 28,226,631 | 1969 | 28,268,642 | 1968 | 28,336,798 | 1967 | 28,361,361 | 1966 | 28,394,008 | 1965 | 28,393,533 | 1964 | 28,273,772 | 1963 | 28,319,238 | 1962 | 28,411,568 | 1961 | 28,256,965 | 1960 | 28,123,657 |
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