| Year | Value | | 2022 | 4,790,443 | | 2021 | 4,699,259 | | 2020 | 4,622,801 | | 2019 | 4,544,229 | | 2018 | 4,460,839 | | 2017 | 4,378,254 | | 2016 | 4,297,207 | | 2015 | 4,216,926 | | 2014 | 4,137,178 | | 2013 | 4,061,634 | | 2012 | 3,989,651 | | 2011 | 3,919,714 | | 2010 | 3,850,926 | | 2009 | 3,783,259 | | 2008 | 3,695,091 | | 2007 | 3,631,329 | | 2006 | 3,568,903 | | 2005 | 3,508,024 | | 2004 | 3,448,279 | | 2003 | 3,389,251 | | 2002 | 3,329,934 | | 2001 | 3,264,694 | | 2000 | 3,189,721 | | 1999 | 3,107,746 | | 1998 | 3,030,755 | | 1997 | 2,963,110 | | 1996 | 2,890,772 | | 1995 | 2,816,670 | | 1994 | 2,742,624 | | 1993 | 2,672,386 | | 1992 | 2,601,788 | | 1991 | 2,512,485 | | 1990 | 2,364,614 | | 1989 | 2,291,231 | | 1988 | 2,251,138 | | 1987 | 2,212,189 | | 1986 | 2,174,515 | | 1985 | 2,138,984 | | 1984 | 2,099,527 | | 1983 | 2,070,260 | | 1982 | 2,031,090 | | 1981 | 1,991,448 | | 1980 | 1,950,235 | | 1979 | 1,902,131 | | 1978 | 1,852,313 | | 1977 | 1,812,246 | | 1976 | 1,770,743 | | 1975 | 1,730,476 | | 1974 | 1,690,521 | | 1973 | 1,640,264 | | 1972 | 1,574,614 | | 1971 | 1,534,488 | | 1970 | 1,486,372 | | 1969 | 1,437,223 | | 1968 | 1,399,502 | | 1967 | 1,369,686 | | 1966 | 1,310,812 | | 1965 | 1,276,798 | | 1964 | 1,231,791 | | 1963 | 1,182,739 | | 1962 | 1,138,578 | | 1961 | 1,083,470 | | 1960 | 1,046,691 |
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