| Year | Value | | 2022 | 10,553,971 | | 2021 | 10,232,573 | | 2020 | 9,921,606 | | 2019 | 9,584,551 | | 2018 | 9,211,731 | | 2017 | 8,825,348 | | 2016 | 8,442,979 | | 2015 | 8,064,977 | | 2014 | 7,704,562 | | 2013 | 7,384,704 | | 2012 | 7,106,619 | | 2011 | 6,860,521 | | 2010 | 6,647,531 | | 2009 | 6,465,074 | | 2008 | 6,287,200 | | 2007 | 6,116,913 | | 2006 | 5,953,060 | | 2005 | 5,792,701 | | 2004 | 5,634,793 | | 2003 | 5,484,883 | | 2002 | 5,346,500 | | 2001 | 5,215,711 | | 2000 | 5,091,375 | | 1999 | 4,971,330 | | 1998 | 4,850,337 | | 1997 | 4,725,358 | | 1996 | 4,595,431 | | 1995 | 4,462,414 | | 1994 | 4,324,904 | | 1993 | 4,181,466 | | 1992 | 4,035,903 | | 1991 | 3,890,736 | | 1990 | 3,746,556 | | 1989 | 3,606,025 | | 1988 | 3,470,969 | | 1987 | 3,344,352 | | 1986 | 3,231,611 | | 1985 | 3,135,854 | | 1984 | 3,054,767 | | 1983 | 2,985,505 | | 1982 | 2,924,220 | | 1981 | 2,863,595 | | 1980 | 2,798,397 | | 1979 | 2,727,039 | | 1978 | 2,648,273 | | 1977 | 2,562,873 | | 1976 | 2,475,442 | | 1975 | 2,389,446 | | 1974 | 2,306,456 | | 1973 | 2,228,299 | | 1972 | 2,155,556 | | 1971 | 2,086,676 | | 1970 | 2,022,395 | | 1969 | 1,960,207 | | 1968 | 1,896,224 | | 1967 | 1,831,116 | | 1966 | 1,764,243 | | 1965 | 1,694,787 | | 1964 | 1,624,502 | | 1963 | 1,555,053 | | 1962 | 1,488,120 | | 1961 | 1,427,314 | | 1960 | 1,376,478 |
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