| Year | Value | | 2024 | 22,663 | | 2023 | 20,384 | | 2022 | 19,088 | | 2021 | 17,592 | | 2020 | 18,603 | | 2019 | 15,926 | | 2018 | 14,890 | | 2017 | 14,351 | | 2016 | 13,512 | | 2015 | 12,359 | | 2014 | 11,383 | | 2013 | 10,275 | | 2012 | 9,019 | | 2011 | 8,144 | | 2010 | 7,685 | | 2009 | 7,078 | | 2008 | 6,023 | | 2007 | 5,565 | | 2006 | 5,059 | | 2005 | 4,460 | | 2004 | 4,056 | | 2003 | 3,751 | | 2002 | 3,500 | | 2001 | 3,293 | | 2000 | 3,113 | | 1999 | 2,948 | | 1998 | 2,795 | | 1997 | 2,655 | | 1996 | 2,547 | | 1995 | 2,463 | | 1994 | 2,373 | | 1993 | 2,275 | | 1992 | 2,170 | | 1991 | 2,051 | | 1990 | 1,924 | | 1989 | 1,796 | | 1988 | 1,672 | | 1987 | 1,555 | | 1986 | 1,450 | | 1985 | 1,379 | | 1984 | 1,339 | | 1983 | 1,303 | | 1982 | 1,270 | | 1981 | 1,239 | | 1980 | 1,209 | | 1979 | 1,180 | | 1978 | 1,151 | | 1977 | 1,123 | | 1976 | 1,092 | | 1975 | 1,062 |
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