Year | Value | 2022 | 67,464 | 2021 | 67,307 | 2020 | 66,813 | 2019 | 66,189 | 2018 | 65,613 | 2017 | 65,048 | 2016 | 64,266 | 2015 | 63,259 | 2014 | 62,145 | 2013 | 60,933 | 2012 | 59,420 | 2011 | 57,322 | 2010 | 54,735 | 2009 | 51,975 | 2008 | 49,372 | 2007 | 47,449 | 2006 | 46,525 | 2005 | 46,251 | 2004 | 46,075 | 2003 | 45,742 | 2002 | 45,384 | 2001 | 45,567 | 2000 | 45,254 | 1999 | 44,977 | 1998 | 44,970 | 1997 | 44,936 | 1996 | 44,513 | 1995 | 43,481 | 1994 | 42,602 | 1993 | 42,339 | 1992 | 42,430 | 1991 | 42,458 | 1990 | 41,968 | 1989 | 40,914 | 1988 | 39,670 | 1987 | 38,268 | 1986 | 36,734 | 1985 | 35,121 | 1984 | 33,472 | 1983 | 31,829 | 1982 | 30,219 | 1981 | 28,491 | 1980 | 26,859 | 1979 | 25,763 | 1978 | 25,367 | 1977 | 25,754 | 1976 | 26,763 | 1975 | 28,033 | 1974 | 29,152 | 1973 | 29,729 | 1972 | 29,492 | 1971 | 28,476 | 1970 | 26,926 | 1969 | 25,140 | 1968 | 23,454 | 1967 | 22,133 | 1966 | 21,242 | 1965 | 20,698 | 1964 | 20,362 | 1963 | 20,068 | 1962 | 19,712 | 1961 | 19,097 | 1960 | 18,221 |
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