Year | Value | 2022 | 17,293,070 | 2021 | 17,239,222 | 2020 | 17,179,942 | 2019 | 17,122,808 | 2018 | 17,039,038 | 2017 | 16,932,450 | 2016 | 16,837,137 | 2015 | 16,736,238 | 2014 | 16,628,215 | 2013 | 16,518,059 | 2012 | 16,408,382 | 2011 | 16,314,161 | 2010 | 16,235,127 | 2009 | 16,149,840 | 2008 | 16,059,588 | 2007 | 15,966,911 | 2006 | 15,871,904 | 2005 | 15,767,411 | 2004 | 15,675,168 | 2003 | 15,586,584 | 2002 | 15,496,500 | 2001 | 15,396,859 | 2000 | 15,293,953 | 1999 | 15,182,873 | 1998 | 15,062,585 | 1997 | 14,940,920 | 1996 | 14,816,841 | 1995 | 14,692,921 | 1994 | 14,579,638 | 1993 | 14,451,836 | 1992 | 14,330,552 | 1991 | 14,209,722 | 1990 | 14,086,189 | 1989 | 13,946,807 | 1988 | 13,801,600 | 1987 | 13,675,831 | 1986 | 13,541,058 | 1985 | 13,384,841 | 1984 | 13,221,038 | 1983 | 13,056,626 | 1982 | 12,885,749 | 1981 | 12,733,809 | 1980 | 12,580,625 | 1979 | 12,438,156 | 1978 | 12,286,570 | 1977 | 12,123,356 | 1976 | 11,956,864 | 1975 | 11,803,730 | 1974 | 11,659,497 | 1973 | 11,529,637 | 1972 | 11,403,752 | 1971 | 11,286,785 | 1970 | 11,173,574 | 1969 | 11,066,954 | 1968 | 10,960,812 | 1967 | 10,848,105 | 1966 | 10,739,085 | 1965 | 10,639,746 | 1964 | 10,534,595 | 1963 | 10,412,834 | 1962 | 10,276,805 | 1961 | 10,138,586 | 1960 | 10,011,921 |
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