Year | Value | 2022 | 37,635 | 2021 | 36,482 | 2020 | 35,343 | 2019 | 34,173 | 2018 | 32,976 | 2017 | 31,748 | 2016 | 30,470 | 2015 | 29,138 | 2014 | 27,756 | 2013 | 26,337 | 2012 | 24,902 | 2011 | 23,482 | 2010 | 22,108 | 2009 | 20,802 | 2008 | 19,576 | 2007 | 18,447 | 2006 | 17,429 | 2005 | 16,517 | 2004 | 15,692 | 2003 | 15,076 | 2002 | 14,929 | 2001 | 15,170 | 2000 | 15,542 | 1999 | 15,978 | 1998 | 16,296 | 1997 | 16,286 | 1996 | 16,014 | 1995 | 15,646 | 1994 | 15,234 | 1993 | 14,776 | 1992 | 14,323 | 1991 | 13,931 | 1990 | 13,600 | 1989 | 13,319 | 1988 | 13,094 | 1987 | 12,913 | 1986 | 12,737 | 1985 | 12,546 | 1984 | 12,344 | 1983 | 12,160 | 1982 | 11,980 | 1981 | 11,795 | 1980 | 11,614 | 1979 | 11,418 | 1978 | 11,223 | 1977 | 11,014 | 1976 | 10,747 | 1975 | 10,406 | 1974 | 9,997 | 1973 | 9,496 | 1972 | 8,932 | 1971 | 8,418 | 1970 | 7,992 | 1969 | 7,647 | 1968 | 7,381 | 1967 | 7,183 | 1966 | 7,002 | 1965 | 6,810 | 1964 | 6,615 | 1963 | 6,421 | 1962 | 6,222 | 1961 | 6,030 | 1960 | 5,854 |
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