| Year | Value | | 2023 | 127,864 | | 2022 | 121,726 | | 2021 | 113,915 | | 2020 | 104,357 | | 2019 | 94,303 | | 2018 | 83,476 | | 2017 | 73,127 | | 2016 | 63,620 | | 2015 | 55,183 | | 2014 | 47,844 | | 2013 | 41,458 | | 2012 | 35,780 | | 2011 | 30,550 | | 2010 | 25,580 | | 2009 | 23,840 | | 2008 | 25,968 | | 2007 | 28,785 | | 2006 | 30,735 | | 2005 | 30,530 | | 2004 | 28,421 | | 2003 | 25,897 | | 2002 | 23,726 | | 2001 | 21,933 | | 2000 | 20,410 | | 1999 | 18,993 | | 1998 | 17,577 | | 1997 | 16,133 | | 1996 | 14,699 | | 1995 | 13,331 | | 1994 | 12,176 | | 1993 | 11,340 | | 1992 | 10,764 | | 1991 | 10,358 | | 1990 | 10,008 | | 1989 | 9,639 | | 1988 | 9,224 | | 1987 | 8,756 | | 1986 | 8,236 | | 1985 | 7,612 | | 1984 | 7,034 | | 1983 | 6,686 | | 1982 | 6,510 | | 1981 | 6,375 | | 1980 | 5,957 | | 1979 | 5,365 | | 1978 | 5,001 | | 1977 | 4,889 | | 1976 | 4,915 | | 1975 | 4,607 | | 1974 | 3,933 |
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