| Year | Value | | 2024 | 9,998,361 | | 2023 | 9,920,197 | | 2022 | 9,849,444 | | 2021 | 9,814,932 | | 2020 | 9,780,423 | | 2019 | 9,745,612 | | 2018 | 9,710,970 | | 2017 | 9,672,329 | | 2016 | 9,624,522 | | 2015 | 9,566,522 | | 2014 | 9,495,800 | | 2013 | 9,402,994 | | 2012 | 9,286,563 | | 2011 | 9,142,008 | | 2010 | 8,985,157 | | 2009 | 8,844,121 | | 2008 | 8,722,637 | | 2007 | 8,619,996 | | 2006 | 8,508,867 | | 2005 | 8,407,807 | | 2004 | 8,331,174 | | 2003 | 8,244,544 | | 2002 | 8,151,528 | | 2001 | 8,081,042 | | 2000 | 8,039,129 | | 1999 | 7,981,669 | | 1998 | 7,872,934 | | 1997 | 7,742,855 | | 1996 | 7,623,737 | | 1995 | 7,525,284 | | 1994 | 7,484,869 | | 1993 | 7,507,140 | | 1992 | 7,431,160 | | 1991 | 7,267,183 | | 1990 | 7,137,453 | | 1989 | 7,012,728 | | 1988 | 6,885,932 | | 1987 | 6,747,795 | | 1986 | 6,604,301 | | 1985 | 6,459,841 | | 1984 | 6,307,637 | | 1983 | 6,146,904 | | 1982 | 5,967,618 | | 1981 | 5,782,746 | | 1980 | 5,468,891 | | 1979 | 5,198,286 | | 1978 | 5,150,454 | | 1977 | 5,108,483 | | 1976 | 5,010,423 | | 1975 | 4,889,466 |
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