Year | Value | 2023 | 39,293 | 2022 | 41,055 | 2021 | 42,615 | 2020 | 44,562 | 2019 | 44,726 | 2018 | 43,334 | 2017 | 41,214 | 2016 | 38,825 | 2015 | 36,479 | 2014 | 34,465 | 2013 | 32,740 | 2012 | 30,815 | 2011 | 29,037 | 2010 | 26,689 | 2009 | 23,705 | 2008 | 20,725 | 2007 | 18,174 | 2006 | 16,482 | 2005 | 14,888 | 2004 | 13,523 | 2003 | 12,561 | 2002 | 11,959 | 2001 | 11,580 | 2000 | 11,158 | 1999 | 10,984 | 1998 | 11,104 | 1997 | 11,166 | 1996 | 11,174 | 1995 | 10,892 | 1994 | 10,437 | 1993 | 10,153 | 1992 | 10,096 | 1991 | 10,030 | 1990 | 10,007 | 1989 | 9,907 | 1988 | 9,695 | 1987 | 9,434 | 1986 | 9,146 | 1985 | 8,907 | 1984 | 8,707 | 1983 | 8,596 | 1982 | 8,578 | 1981 | 8,588 | 1980 | 8,629 | 1979 | 8,701 | 1978 | 8,731 | 1977 | 8,720 | 1976 | 8,709 | 1975 | 8,662 | 1974 | 8,586 |
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