| Year | Value | | 2024 | 406,415 | | 2023 | 379,799 | | 2022 | 353,656 | | 2021 | 327,951 | | 2020 | 302,401 | | 2019 | 279,126 | | 2018 | 258,423 | | 2017 | 238,519 | | 2016 | 219,699 | | 2015 | 202,643 | | 2014 | 187,854 | | 2013 | 175,865 | | 2012 | 166,313 | | 2011 | 159,849 | | 2010 | 157,455 | | 2009 | 158,398 | | 2008 | 161,793 | | 2007 | 166,716 | | 2006 | 173,019 | | 2005 | 179,706 | | 2004 | 185,915 | | 2003 | 191,899 | | 2002 | 196,915 | | 2001 | 200,608 | | 2000 | 202,573 | | 1999 | 202,929 | | 1998 | 198,483 | | 1997 | 190,226 | | 1996 | 182,749 | | 1995 | 174,783 | | 1994 | 165,239 | | 1993 | 158,903 | | 1992 | 154,866 | | 1991 | 150,020 | | 1990 | 145,835 | | 1989 | 141,093 | | 1988 | 135,645 | | 1987 | 129,481 | | 1986 | 123,713 | | 1985 | 118,864 | | 1984 | 114,520 | | 1983 | 110,805 | | 1982 | 107,451 | | 1981 | 104,336 | | 1980 | 97,698 | | 1979 | 92,935 | | 1978 | 95,011 | | 1977 | 97,022 | | 1976 | 96,850 | | 1975 | 95,353 |
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