Year | Value | 2023 | 3,830 | 2022 | 3,458 | 2021 | 3,248 | 2020 | 3,189 | 2019 | 3,194 | 2018 | 3,253 | 2017 | 3,359 | 2016 | 3,425 | 2015 | 3,426 | 2014 | 3,101 | 2013 | 2,523 | 2012 | 2,220 | 2011 | 2,184 | 2010 | 2,160 | 2009 | 2,140 | 2008 | 2,152 | 2007 | 2,168 | 2006 | 2,161 | 2005 | 2,114 | 2004 | 1,993 | 2003 | 1,832 | 2002 | 1,717 | 2001 | 1,644 | 2000 | 1,577 | 1999 | 1,517 | 1998 | 1,451 | 1997 | 1,376 | 1996 | 1,295 | 1995 | 1,210 | 1994 | 1,123 | 1993 | 1,042 | 1992 | 972 | 1991 | 922 | 1990 | 899 | 1989 | 886 | 1988 | 867 | 1987 | 846 | 1986 | 826 | 1985 | 804 | 1984 | 778 | 1983 | 747 | 1982 | 712 | 1981 | 681 | 1980 | 671 | 1979 | 676 | 1978 | 677 | 1977 | 666 | 1976 | 651 | 1975 | 635 | 1974 | 621 |
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