| Year | Value | | 2024 | 2,152 | | 2023 | 2,184 | | 2022 | 2,233 | | 2021 | 2,341 | | 2020 | 2,437 | | 2019 | 2,506 | | 2018 | 2,578 | | 2017 | 2,619 | | 2016 | 2,655 | | 2015 | 2,660 | | 2014 | 2,618 | | 2013 | 2,522 | | 2012 | 2,430 | | 2011 | 2,336 | | 2010 | 2,223 | | 2009 | 2,142 | | 2008 | 2,078 | | 2007 | 2,019 | | 2006 | 1,960 | | 2005 | 1,913 | | 2004 | 1,870 | | 2003 | 1,828 | | 2002 | 1,794 | | 2001 | 1,762 | | 2000 | 1,720 | | 1999 | 1,671 | | 1998 | 1,632 | | 1997 | 1,605 | | 1996 | 1,600 | | 1995 | 1,619 | | 1994 | 1,637 | | 1993 | 1,640 | | 1992 | 1,631 | | 1991 | 1,627 | | 1990 | 1,634 | | 1989 | 1,650 | | 1988 | 1,673 | | 1987 | 1,684 | | 1986 | 1,694 | | 1985 | 1,719 | | 1984 | 1,742 | | 1983 | 1,760 | | 1982 | 1,776 | | 1981 | 1,792 | | 1980 | 1,800 | | 1979 | 1,799 | | 1978 | 1,791 | | 1977 | 1,776 | | 1976 | 1,756 | | 1975 | 1,734 |
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