Year | Value | 2023 | 27,806 | 2022 | 26,738 | 2021 | 25,672 | 2020 | 24,618 | 2019 | 23,570 | 2018 | 22,543 | 2017 | 21,551 | 2016 | 20,598 | 2015 | 19,686 | 2014 | 18,813 | 2013 | 17,982 | 2012 | 17,195 | 2011 | 16,449 | 2010 | 15,743 | 2009 | 15,073 | 2008 | 14,445 | 2007 | 13,876 | 2006 | 13,379 | 2005 | 13,039 | 2004 | 12,899 | 2003 | 12,859 | 2002 | 12,763 | 2001 | 12,552 | 2000 | 12,244 | 1999 | 11,808 | 1998 | 11,279 | 1997 | 10,732 | 1996 | 10,261 | 1995 | 9,917 | 1994 | 9,734 | 1993 | 9,482 | 1992 | 9,612 | 1991 | 9,649 | 1990 | 8,830 | 1989 | 7,950 | 1988 | 7,335 | 1987 | 6,855 | 1986 | 6,412 | 1985 | 6,040 | 1984 | 5,746 | 1983 | 5,516 | 1982 | 5,314 | 1981 | 5,098 | 1980 | 4,833 | 1979 | 4,508 | 1978 | 4,139 | 1977 | 3,759 | 1976 | 3,403 | 1975 | 3,095 | 1974 | 2,838 |
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