| Year | Value | | 2022 | 9,881,586 | | 2021 | 9,591,660 | | 2020 | 9,289,513 | | 2019 | 8,987,692 | | 2018 | 8,699,539 | | 2017 | 8,439,284 | | 2016 | 8,185,728 | | 2015 | 7,930,058 | | 2014 | 7,683,017 | | 2013 | 7,424,146 | | 2012 | 7,158,887 | | 2011 | 6,918,883 | | 2010 | 6,695,586 | | 2009 | 6,469,291 | | 2008 | 6,249,966 | | 2007 | 6,037,194 | | 2006 | 5,813,622 | | 2005 | 5,582,293 | | 2004 | 5,357,464 | | 2003 | 5,127,820 | | 2002 | 4,896,420 | | 2001 | 4,666,337 | | 2000 | 4,431,541 | | 1999 | 4,186,858 | | 1998 | 3,950,158 | | 1997 | 3,747,258 | | 1996 | 3,574,060 | | 1995 | 3,431,012 | | 1994 | 3,322,964 | | 1993 | 3,255,514 | | 1992 | 3,216,198 | | 1991 | 3,185,065 | | 1990 | 3,152,320 | | 1989 | 3,120,965 | | 1988 | 3,093,166 | | 1987 | 3,058,850 | | 1986 | 3,015,170 | | 1985 | 2,965,974 | | 1984 | 2,909,983 | | 1983 | 2,843,338 | | 1982 | 2,772,786 | | 1981 | 2,693,363 | | 1980 | 2,616,591 | | 1979 | 2,552,697 | | 1978 | 2,498,160 | | 1977 | 2,445,253 | | 1976 | 2,374,095 | | 1975 | 2,291,993 | | 1974 | 2,213,365 | | 1973 | 2,134,594 | | 1972 | 2,054,670 | | 1971 | 1,983,087 | | 1970 | 1,924,033 | | 1969 | 1,875,294 | | 1968 | 1,836,203 | | 1967 | 1,805,378 | | 1966 | 1,777,608 | | 1965 | 1,748,936 | | 1964 | 1,720,921 | | 1963 | 1,696,938 | | 1962 | 1,676,097 | | 1961 | 1,655,681 | | 1960 | 1,633,988 |
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