| Year | Value | | 2022 | 8,395,587 | | 2021 | 8,040,210 | | 2020 | 7,688,854 | | 2019 | 7,361,798 | | 2018 | 7,045,316 | | 2017 | 6,739,549 | | 2016 | 6,458,604 | | 2015 | 6,180,837 | | 2014 | 5,906,348 | | 2013 | 5,645,338 | | 2012 | 5,387,801 | | 2011 | 5,130,611 | | 2010 | 4,877,079 | | 2009 | 4,643,794 | | 2008 | 4,437,389 | | 2007 | 4,246,246 | | 2006 | 4,052,184 | | 2005 | 3,852,638 | | 2004 | 3,656,054 | | 2003 | 3,475,013 | | 2002 | 3,315,613 | | 2001 | 3,179,260 | | 2000 | 3,068,496 | | 1999 | 2,981,012 | | 1998 | 2,916,462 | | 1997 | 2,862,918 | | 1996 | 2,811,284 | | 1995 | 2,773,830 | | 1994 | 2,749,177 | | 1993 | 2,719,566 | | 1992 | 2,679,731 | | 1991 | 2,633,701 | | 1990 | 2,593,560 | | 1989 | 2,532,690 | | 1988 | 2,474,866 | | 1987 | 2,413,396 | | 1986 | 2,345,212 | | 1985 | 2,278,904 | | 1984 | 2,215,206 | | 1983 | 2,150,744 | | 1982 | 2,087,305 | | 1981 | 2,026,451 | | 1980 | 1,965,683 | | 1979 | 1,901,284 | | 1978 | 1,839,179 | | 1977 | 1,781,472 | | 1976 | 1,717,883 | | 1975 | 1,653,925 | | 1974 | 1,603,414 | | 1973 | 1,565,246 | | 1972 | 1,533,626 | | 1971 | 1,505,125 | | 1970 | 1,478,286 | | 1969 | 1,453,006 | | 1968 | 1,429,729 | | 1967 | 1,407,681 | | 1966 | 1,386,002 | | 1965 | 1,362,685 | | 1964 | 1,336,920 | | 1963 | 1,308,865 | | 1962 | 1,278,729 | | 1961 | 1,248,284 | | 1960 | 1,221,818 |
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