Year | Value | 2022 | 43,313,523 | 2021 | 42,792,327 | 2020 | 42,393,051 | 2019 | 41,965,649 | 2018 | 41,379,367 | 2017 | 40,728,210 | 2016 | 40,033,083 | 2015 | 39,277,070 | 2014 | 38,493,904 | 2013 | 37,740,743 | 2012 | 37,059,328 | 2011 | 36,444,557 | 2010 | 35,871,823 | 2009 | 35,254,103 | 2008 | 34,550,707 | 2007 | 33,808,469 | 2006 | 33,079,043 | 2005 | 32,425,757 | 2004 | 31,893,127 | 2003 | 31,425,957 | 2002 | 30,971,830 | 2001 | 30,514,882 | 2000 | 30,055,791 | 1999 | 29,583,318 | 1998 | 29,106,853 | 1997 | 28,645,950 | 1996 | 28,194,606 | 1995 | 27,759,071 | 1994 | 27,353,950 | 1993 | 26,935,348 | 1992 | 26,545,612 | 1991 | 26,140,490 | 1990 | 25,640,496 | 1989 | 25,113,605 | 1988 | 24,594,588 | 1987 | 24,116,273 | 1986 | 23,641,226 | 1985 | 23,163,146 | 1984 | 22,694,297 | 1983 | 22,242,599 | 1982 | 21,796,965 | 1981 | 21,364,236 | 1980 | 20,943,051 | 1979 | 20,524,352 | 1978 | 20,106,738 | 1977 | 19,681,071 | 1976 | 19,257,182 | 1975 | 18,849,654 | 1974 | 18,462,143 | 1973 | 18,101,072 | 1972 | 17,755,900 | 1971 | 17,422,937 | 1970 | 17,101,673 | 1969 | 16,797,144 | 1968 | 16,499,992 | 1967 | 16,202,562 | 1966 | 15,916,917 | 1965 | 15,638,952 | 1964 | 15,357,679 | 1963 | 15,063,701 | 1962 | 14,762,850 | 1961 | 14,466,792 | 1960 | 14,195,394 |
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