Year | Value | 2022 | 17,317 | 2021 | 16,858 | 2020 | 16,409 | 2019 | 15,902 | 2018 | 15,323 | 2017 | 14,747 | 2016 | 14,183 | 2015 | 13,640 | 2014 | 13,105 | 2013 | 12,579 | 2012 | 12,083 | 2011 | 11,626 | 2010 | 11,211 | 2009 | 10,907 | 2008 | 10,694 | 2007 | 10,475 | 2006 | 10,227 | 2005 | 9,949 | 2004 | 9,635 | 2003 | 9,297 | 2002 | 8,968 | 2001 | 8,663 | 2000 | 8,364 | 1999 | 8,058 | 1998 | 7,724 | 1997 | 7,352 | 1996 | 7,001 | 1995 | 6,721 | 1994 | 6,511 | 1993 | 6,356 | 1992 | 6,234 | 1991 | 6,055 | 1990 | 5,826 | 1989 | 5,585 | 1988 | 5,321 | 1987 | 5,062 | 1986 | 4,804 | 1985 | 4,535 | 1984 | 4,274 | 1983 | 4,014 | 1982 | 3,736 | 1981 | 3,460 | 1980 | 3,236 | 1979 | 3,065 | 1978 | 2,933 | 1977 | 2,847 | 1976 | 2,802 | 1975 | 2,787 | 1974 | 2,809 | 1973 | 2,854 | 1972 | 2,883 | 1971 | 2,884 | 1970 | 2,859 | 1969 | 2,826 | 1968 | 2,797 | 1967 | 2,778 | 1966 | 2,768 | 1965 | 2,763 | 1964 | 2,752 | 1963 | 2,734 | 1962 | 2,710 | 1961 | 2,676 | 1960 | 2,635 |
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