Year | Value | 2022 | 44,188 | 2021 | 44,536 | 2020 | 45,242 | 2019 | 45,909 | 2018 | 46,296 | 2017 | 46,067 | 2016 | 45,175 | 2015 | 43,813 | 2014 | 42,075 | 2013 | 40,040 | 2012 | 37,950 | 2011 | 35,961 | 2010 | 34,293 | 2009 | 33,008 | 2008 | 32,003 | 2007 | 31,112 | 2006 | 30,187 | 2005 | 29,150 | 2004 | 27,989 | 2003 | 26,794 | 2002 | 25,687 | 2001 | 24,745 | 2000 | 24,184 | 1999 | 23,699 | 1998 | 23,211 | 1997 | 22,607 | 1996 | 21,870 | 1995 | 21,064 | 1994 | 20,344 | 1993 | 19,879 | 1992 | 19,756 | 1991 | 19,914 | 1990 | 20,233 | 1989 | 20,083 | 1988 | 19,626 | 1987 | 19,108 | 1986 | 18,368 | 1985 | 17,457 | 1984 | 16,373 | 1983 | 15,237 | 1982 | 14,186 | 1981 | 13,339 | 1980 | 12,802 | 1979 | 12,641 | 1978 | 12,816 | 1977 | 13,138 | 1976 | 13,430 | 1975 | 13,532 | 1974 | 13,311 | 1973 | 12,801 | 1972 | 12,125 | 1971 | 11,429 | 1970 | 10,879 | 1969 | 10,566 | 1968 | 10,474 | 1967 | 10,579 | 1966 | 10,792 | 1965 | 10,983 | 1964 | 11,063 | 1963 | 10,999 | 1962 | 10,799 | 1961 | 10,493 | 1960 | 10,147 |
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