Year | Value | 2022 | 41,899 | 2021 | 42,187 | 2020 | 42,123 | 2019 | 41,697 | 2018 | 41,251 | 2017 | 40,949 | 2016 | 40,741 | 2015 | 40,590 | 2014 | 40,494 | 2013 | 40,455 | 2012 | 40,523 | 2011 | 40,756 | 2010 | 41,171 | 2009 | 41,783 | 2008 | 42,591 | 2007 | 42,657 | 2006 | 41,647 | 2005 | 40,311 | 2004 | 38,800 | 2003 | 37,125 | 2002 | 35,383 | 2001 | 33,673 | 2000 | 31,994 | 1999 | 30,162 | 1998 | 29,241 | 1997 | 29,145 | 1996 | 28,587 | 1995 | 27,549 | 1994 | 27,359 | 1993 | 27,760 | 1992 | 27,122 | 1991 | 26,044 | 1990 | 25,060 | 1989 | 24,001 | 1988 | 22,926 | 1987 | 20,648 | 1986 | 18,299 | 1985 | 17,185 | 1984 | 16,207 | 1983 | 15,486 | 1982 | 14,954 | 1981 | 14,446 | 1980 | 13,839 | 1979 | 13,115 | 1978 | 12,298 | 1977 | 11,580 | 1976 | 11,072 | 1975 | 10,675 | 1974 | 10,358 | 1973 | 10,116 | 1972 | 9,954 | 1971 | 9,805 | 1970 | 9,641 | 1969 | 9,470 | 1968 | 9,284 | 1967 | 9,081 | 1966 | 8,877 | 1965 | 8,684 | 1964 | 8,495 | 1963 | 8,302 | 1962 | 8,111 | 1961 | 7,928 | 1960 | 7,753 |
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