| Year | Value | | 2024 | 3,867 | | 2023 | 3,927 | | 2022 | 3,952 | | 2021 | 3,999 | | 2020 | 4,023 | | 2019 | 3,958 | | 2018 | 3,864 | | 2017 | 3,758 | | 2016 | 3,607 | | 2015 | 3,427 | | 2014 | 3,235 | | 2013 | 3,050 | | 2012 | 2,884 | | 2011 | 2,738 | | 2010 | 2,613 | | 2009 | 2,504 | | 2008 | 2,405 | | 2007 | 2,309 | | 2006 | 2,213 | | 2005 | 2,116 | | 2004 | 2,015 | | 2003 | 1,908 | | 2002 | 1,800 | | 2001 | 1,697 | | 2000 | 1,604 | | 1999 | 1,528 | | 1998 | 1,475 | | 1997 | 1,444 | | 1996 | 1,428 | | 1995 | 1,423 | | 1994 | 1,415 | | 1993 | 1,394 | | 1992 | 1,357 | | 1991 | 1,303 | | 1990 | 1,237 | | 1989 | 1,161 | | 1988 | 1,082 | | 1987 | 1,005 | | 1986 | 930 | | 1985 | 862 | | 1984 | 803 | | 1983 | 756 | | 1982 | 722 | | 1981 | 702 | | 1980 | 688 | | 1979 | 671 | | 1978 | 646 | | 1977 | 614 | | 1976 | 575 | | 1975 | 536 |
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