| Year | Value | | 2024 | 79,996 | | 2023 | 80,372 | | 2022 | 80,751 | | 2021 | 81,118 | | 2020 | 81,287 | | 2019 | 81,252 | | 2018 | 81,148 | | 2017 | 80,946 | | 2016 | 81,019 | | 2015 | 81,401 | | 2014 | 81,739 | | 2013 | 82,041 | | 2012 | 82,277 | | 2011 | 82,352 | | 2010 | 82,280 | | 2009 | 82,187 | | 2008 | 82,105 | | 2007 | 81,937 | | 2006 | 81,619 | | 2005 | 81,203 | | 2004 | 80,771 | | 2003 | 80,335 | | 2002 | 79,911 | | 2001 | 79,489 | | 2000 | 79,049 | | 1999 | 78,592 | | 1998 | 78,114 | | 1997 | 77,592 | | 1996 | 77,315 | | 1995 | 77,310 | | 1994 | 77,296 | | 1993 | 77,280 | | 1992 | 77,249 | | 1991 | 77,183 | | 1990 | 77,064 | | 1989 | 76,866 | | 1988 | 76,561 | | 1987 | 76,134 | | 1986 | 75,962 | | 1985 | 76,165 | | 1984 | 76,391 | | 1983 | 76,618 | | 1982 | 76,822 | | 1981 | 76,983 | | 1980 | 77,087 | | 1979 | 77,123 | | 1978 | 77,064 | | 1977 | 76,893 | | 1976 | 75,910 | | 1975 | 74,100 |
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