Year | Value | 2023 | 3,329 | 2022 | 3,417 | 2021 | 3,431 | 2020 | 3,387 | 2019 | 3,313 | 2018 | 3,221 | 2017 | 3,129 | 2016 | 3,104 | 2015 | 3,105 | 2014 | 3,078 | 2013 | 3,072 | 2012 | 3,095 | 2011 | 3,120 | 2010 | 3,160 | 2009 | 3,204 | 2008 | 3,237 | 2007 | 3,256 | 2006 | 3,244 | 2005 | 3,183 | 2004 | 3,077 | 2003 | 2,938 | 2002 | 2,795 | 2001 | 2,685 | 2000 | 2,608 | 1999 | 2,550 | 1998 | 2,504 | 1997 | 2,456 | 1996 | 2,419 | 1995 | 2,405 | 1994 | 2,402 | 1993 | 2,409 | 1992 | 2,415 | 1991 | 2,410 | 1990 | 2,386 | 1989 | 2,346 | 1988 | 2,309 | 1987 | 2,292 | 1986 | 2,307 | 1985 | 2,335 | 1984 | 2,349 | 1983 | 2,344 | 1982 | 2,332 | 1981 | 2,335 | 1980 | 2,348 | 1979 | 2,363 | 1978 | 2,378 | 1977 | 2,380 | 1976 | 2,350 | 1975 | 2,297 |
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