Year | Value | 2023 | 35,308 | 2022 | 34,886 | 2021 | 34,452 | 2020 | 33,954 | 2019 | 33,364 | 2018 | 32,685 | 2017 | 31,914 | 2016 | 31,058 | 2015 | 30,123 | 2014 | 29,121 | 2013 | 28,069 | 2012 | 26,986 | 2011 | 25,895 | 2010 | 24,821 | 2009 | 23,765 | 2008 | 22,736 | 2007 | 21,759 | 2006 | 20,814 | 2005 | 19,985 | 2004 | 19,308 | 2003 | 18,684 | 2002 | 17,932 | 2001 | 17,019 | 2000 | 16,147 | 1999 | 15,331 | 1998 | 14,492 | 1997 | 13,615 | 1996 | 12,949 | 1995 | 12,666 | 1994 | 12,756 | 1993 | 12,824 | 1992 | 13,451 | 1991 | 13,869 | 1990 | 12,894 | 1989 | 11,649 | 1988 | 10,704 | 1987 | 9,951 | 1986 | 9,265 | 1985 | 8,691 | 1984 | 8,247 | 1983 | 7,910 | 1982 | 7,626 | 1981 | 7,321 | 1980 | 6,948 | 1979 | 6,490 | 1978 | 5,964 | 1977 | 5,419 | 1976 | 4,910 | 1975 | 4,468 | 1974 | 4,104 |
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