| Year | Value | | 2024 | 9,279 | | 2023 | 8,866 | | 2022 | 8,381 | | 2021 | 7,872 | | 2020 | 7,349 | | 2019 | 6,803 | | 2018 | 6,268 | | 2017 | 5,787 | | 2016 | 5,349 | | 2015 | 4,945 | | 2014 | 4,553 | | 2013 | 4,158 | | 2012 | 3,760 | | 2011 | 3,386 | | 2010 | 3,116 | | 2009 | 3,008 | | 2008 | 2,999 | | 2007 | 3,029 | | 2006 | 3,080 | | 2005 | 3,140 | | 2004 | 3,212 | | 2003 | 3,286 | | 2002 | 3,349 | | 2001 | 3,395 | | 2000 | 3,428 | | 1999 | 3,468 | | 1998 | 3,527 | | 1997 | 3,593 | | 1996 | 3,656 | | 1995 | 3,705 | | 1994 | 3,731 | | 1993 | 3,728 | | 1992 | 3,697 | | 1991 | 3,637 | | 1990 | 3,553 | | 1989 | 3,474 | | 1988 | 3,411 | | 1987 | 3,346 | | 1986 | 3,284 | | 1985 | 3,229 | | 1984 | 3,180 | | 1983 | 3,139 | | 1982 | 3,108 | | 1981 | 3,087 | | 1980 | 3,091 | | 1979 | 3,203 | | 1978 | 3,397 | | 1977 | 3,582 | | 1976 | 3,756 | | 1975 | 3,918 |
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