Year | Value | 2022 | 36,399 | 2021 | 35,761 | 2020 | 37,212 | 2019 | 39,815 | 2018 | 42,811 | 2017 | 45,808 | 2016 | 48,040 | 2015 | 49,051 | 2014 | 49,245 | 2013 | 48,772 | 2012 | 48,291 | 2011 | 48,105 | 2010 | 47,762 | 2009 | 47,389 | 2008 | 47,004 | 2007 | 46,699 | 2006 | 45,644 | 2005 | 43,551 | 2004 | 40,734 | 2003 | 37,259 | 2002 | 33,523 | 2001 | 29,852 | 2000 | 26,485 | 1999 | 23,377 | 1998 | 20,525 | 1997 | 18,083 | 1996 | 16,028 | 1995 | 14,574 | 1994 | 14,208 | 1993 | 15,226 | 1992 | 17,557 | 1991 | 19,739 | 1990 | 21,072 | 1989 | 22,282 | 1988 | 23,356 | 1987 | 24,122 | 1986 | 24,547 | 1985 | 24,628 | 1984 | 24,293 | 1983 | 23,533 | 1982 | 22,485 | 1981 | 21,380 | 1980 | 20,397 | 1979 | 19,538 | 1978 | 18,771 | 1977 | 18,064 | 1976 | 17,260 | 1975 | 16,284 | 1974 | 15,172 | 1973 | 13,932 | 1972 | 12,646 | 1971 | 11,513 | 1970 | 10,620 | 1969 | 9,955 | 1968 | 9,567 | 1967 | 9,408 | 1966 | 9,247 | 1965 | 8,969 | 1964 | 8,607 | 1963 | 8,134 | 1962 | 7,568 | 1961 | 7,068 | 1960 | 6,741 |
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