| Year | Value | | 2022 | 8,590,378 | | 2021 | 8,470,073 | | 2020 | 8,348,500 | | 2019 | 8,223,795 | | 2018 | 8,096,410 | | 2017 | 7,968,085 | | 2016 | 7,839,799 | | 2015 | 7,711,363 | | 2014 | 7,582,657 | | 2013 | 7,453,516 | | 2012 | 7,324,702 | | 2011 | 7,196,825 | | 2010 | 7,068,420 | | 2009 | 6,941,334 | | 2008 | 6,813,669 | | 2007 | 6,685,344 | | 2006 | 6,556,342 | | 2005 | 6,426,631 | | 2004 | 6,296,273 | | 2003 | 6,165,563 | | 2002 | 6,034,184 | | 2001 | 5,898,649 | | 2000 | 5,760,216 | | 1999 | 5,623,370 | | 1998 | 5,493,408 | | 1997 | 5,366,953 | | 1996 | 5,243,706 | | 1995 | 5,121,080 | | 1994 | 4,998,864 | | 1993 | 4,878,592 | | 1992 | 4,759,306 | | 1991 | 4,639,697 | | 1990 | 4,519,890 | | 1989 | 4,400,815 | | 1988 | 4,283,814 | | 1987 | 4,169,662 | | 1986 | 4,058,771 | | 1985 | 3,951,145 | | 1984 | 3,846,881 | | 1983 | 3,746,550 | | 1982 | 3,654,169 | | 1981 | 3,566,681 | | 1980 | 3,480,746 | | 1979 | 3,399,326 | | 1978 | 3,322,794 | | 1977 | 3,250,352 | | 1976 | 3,180,194 | | 1975 | 3,111,616 | | 1974 | 3,044,171 | | 1973 | 2,976,723 | | 1972 | 2,909,638 | | 1971 | 2,843,018 | | 1970 | 2,776,446 | | 1969 | 2,709,623 | | 1968 | 2,642,224 | | 1967 | 2,574,222 | | 1966 | 2,506,019 | | 1965 | 2,438,039 | | 1964 | 2,370,614 | | 1963 | 2,303,904 | | 1962 | 2,238,305 | | 1961 | 2,174,152 | | 1960 | 2,111,758 |
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