Year | Value | 2022 | 40,468 | 2021 | 40,294 | 2020 | 40,275 | 2019 | 40,590 | 2018 | 41,252 | 2017 | 41,708 | 2016 | 41,458 | 2015 | 40,771 | 2014 | 40,077 | 2013 | 39,403 | 2012 | 38,762 | 2011 | 38,129 | 2010 | 37,479 | 2009 | 36,777 | 2008 | 35,978 | 2007 | 35,068 | 2006 | 34,083 | 2005 | 33,082 | 2004 | 32,193 | 2003 | 31,168 | 2002 | 30,256 | 2001 | 29,811 | 2000 | 29,524 | 1999 | 29,278 | 1998 | 28,639 | 1997 | 27,630 | 1996 | 26,683 | 1995 | 25,823 | 1994 | 25,059 | 1993 | 24,396 | 1992 | 23,757 | 1991 | 23,139 | 1990 | 22,461 | 1989 | 21,598 | 1988 | 20,668 | 1987 | 19,771 | 1986 | 18,934 | 1985 | 18,186 | 1984 | 17,540 | 1983 | 16,995 | 1982 | 16,551 | 1981 | 16,078 | 1980 | 15,540 | 1979 | 15,124 | 1978 | 14,844 | 1977 | 14,584 | 1976 | 14,299 | 1975 | 13,974 | 1974 | 13,589 | 1973 | 13,121 | 1972 | 12,570 | 1971 | 11,940 | 1970 | 11,267 | 1969 | 10,538 | 1968 | 9,783 | 1967 | 9,123 | 1966 | 8,697 | 1965 | 8,485 | 1964 | 8,441 | 1963 | 8,555 | 1962 | 8,684 | 1961 | 8,782 | 1960 | 8,866 |
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