Year | Value | 2022 | 50,287 | 2021 | 53,126 | 2020 | 53,958 | 2019 | 53,006 | 2018 | 50,921 | 2017 | 48,379 | 2016 | 45,448 | 2015 | 42,491 | 2014 | 39,735 | 2013 | 36,994 | 2012 | 35,339 | 2011 | 34,651 | 2010 | 33,553 | 2009 | 32,000 | 2008 | 30,056 | 2007 | 27,789 | 2006 | 25,231 | 2005 | 22,841 | 2004 | 20,889 | 2003 | 19,240 | 2002 | 18,016 | 2001 | 17,186 | 2000 | 16,738 | 1999 | 16,584 | 1998 | 16,776 | 1997 | 17,216 | 1996 | 17,379 | 1995 | 17,372 | 1994 | 18,109 | 1993 | 19,873 | 1992 | 22,743 | 1991 | 24,485 | 1990 | 24,167 | 1989 | 23,566 | 1988 | 22,760 | 1987 | 21,792 | 1986 | 20,853 | 1985 | 20,053 | 1984 | 19,294 | 1983 | 18,536 | 1982 | 17,762 | 1981 | 16,892 | 1980 | 15,917 | 1979 | 14,885 | 1978 | 13,824 | 1977 | 12,776 | 1976 | 11,822 | 1975 | 11,006 | 1974 | 10,338 | 1973 | 9,866 | 1972 | 9,567 | 1971 | 9,317 | 1970 | 9,050 | 1969 | 8,762 | 1968 | 8,432 | 1967 | 8,054 | 1966 | 7,689 | 1965 | 7,405 | 1964 | 7,205 | 1963 | 7,086 | 1962 | 7,039 | 1961 | 6,995 | 1960 | 6,913 |
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