Year | Value | 2023 | 1,718 | 2022 | 1,699 | 2021 | 1,638 | 2020 | 1,562 | 2019 | 1,473 | 2018 | 1,382 | 2017 | 1,326 | 2016 | 1,292 | 2015 | 1,253 | 2014 | 1,227 | 2013 | 1,209 | 2012 | 1,176 | 2011 | 1,173 | 2010 | 1,191 | 2009 | 1,197 | 2008 | 1,185 | 2007 | 1,150 | 2006 | 1,103 | 2005 | 1,055 | 2004 | 1,015 | 2003 | 993 | 2002 | 993 | 2001 | 1,005 | 2000 | 1,009 | 1999 | 995 | 1998 | 960 | 1997 | 912 | 1996 | 859 | 1995 | 804 | 1994 | 751 | 1993 | 696 | 1992 | 638 | 1991 | 583 | 1990 | 539 | 1989 | 504 | 1988 | 479 | 1987 | 456 | 1986 | 428 | 1985 | 393 | 1984 | 360 | 1983 | 327 | 1982 | 293 | 1981 | 264 | 1980 | 238 | 1979 | 216 | 1978 | 203 | 1977 | 191 | 1976 | 178 | 1975 | 167 |
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