Year | Value | 2022 | 48,666 | 2021 | 49,841 | 2020 | 51,284 | 2019 | 52,839 | 2018 | 54,065 | 2017 | 54,869 | 2016 | 55,258 | 2015 | 55,523 | 2014 | 55,820 | 2013 | 55,812 | 2012 | 55,585 | 2011 | 55,314 | 2010 | 54,808 | 2009 | 54,326 | 2008 | 55,111 | 2007 | 56,998 | 2006 | 59,104 | 2005 | 61,218 | 2004 | 63,086 | 2003 | 64,218 | 2002 | 64,892 | 2001 | 65,806 | 2000 | 65,630 | 1999 | 66,031 | 1998 | 67,143 | 1997 | 68,662 | 1996 | 70,748 | 1995 | 73,045 | 1994 | 75,069 | 1993 | 77,100 | 1992 | 79,806 | 1991 | 82,757 | 1990 | 85,728 | 1989 | 88,502 | 1988 | 91,182 | 1987 | 93,578 | 1986 | 95,318 | 1985 | 96,132 | 1984 | 96,075 | 1983 | 95,283 | 1982 | 93,894 | 1981 | 92,132 | 1980 | 90,421 | 1979 | 88,878 | 1978 | 87,396 | 1977 | 86,052 | 1976 | 84,843 | 1975 | 83,900 | 1974 | 83,370 | 1973 | 83,206 | 1972 | 83,395 | 1971 | 83,720 | 1970 | 84,558 | 1969 | 86,127 | 1968 | 87,831 | 1967 | 89,629 | 1966 | 91,821 | 1965 | 94,004 | 1964 | 95,655 | 1963 | 96,969 | 1962 | 96,513 | 1961 | 95,988 | 1960 | 97,017 |
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