| Year | Value | | 2024 | 2,686 | | 2023 | 2,435 | | 2022 | 2,269 | | 2021 | 1,880 | | 2020 | 1,932 | | 2019 | 1,867 | | 2018 | 1,784 | | 2017 | 1,648 | | 2016 | 1,540 | | 2015 | 1,443 | | 2014 | 1,405 | | 2013 | 1,315 | | 2012 | 1,123 | | 2011 | 960 | | 2010 | 873 | | 2009 | 882 | | 2008 | 817 | | 2007 | 659 | | 2006 | 542 | | 2005 | 515 | | 2004 | 489 | | 2003 | 466 | | 2002 | 451 | | 2001 | 435 | | 2000 | 417 | | 1999 | 394 | | 1998 | 371 | | 1997 | 350 | | 1996 | 336 | | 1995 | 330 | | 1994 | 325 | | 1993 | 316 | | 1992 | 307 | | 1991 | 299 | | 1990 | 290 | | 1989 | 277 | | 1988 | 265 | | 1987 | 254 | | 1986 | 245 | | 1985 | 250 | | 1984 | 266 | | 1983 | 279 | | 1982 | 283 | | 1981 | 282 | | 1980 | 280 | | 1979 | 278 | | 1978 | 275 | | 1977 | 269 | | 1976 | 261 | | 1975 | 251 |
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