Year | Value | 2022 | 52,763 | 2021 | 52,330 | 2020 | 51,913 | 2019 | 51,497 | 2018 | 51,010 | 2017 | 50,381 | 2016 | 49,577 | 2015 | 48,611 | 2014 | 47,504 | 2013 | 46,343 | 2012 | 45,235 | 2011 | 44,212 | 2010 | 43,242 | 2009 | 42,342 | 2008 | 41,537 | 2007 | 40,787 | 2006 | 40,073 | 2005 | 39,425 | 2004 | 38,831 | 2003 | 38,211 | 2002 | 37,536 | 2001 | 36,838 | 2000 | 36,136 | 1999 | 35,472 | 1998 | 34,803 | 1997 | 34,070 | 1996 | 33,297 | 1995 | 32,486 | 1994 | 31,694 | 1993 | 30,953 | 1992 | 30,254 | 1991 | 29,578 | 1990 | 28,909 | 1989 | 28,245 | 1988 | 27,597 | 1987 | 26,960 | 1986 | 26,295 | 1985 | 25,581 | 1984 | 24,853 | 1983 | 24,143 | 1982 | 23,451 | 1981 | 22,767 | 1980 | 22,084 | 1979 | 21,441 | 1978 | 20,873 | 1977 | 20,396 | 1976 | 20,042 | 1975 | 19,737 | 1974 | 19,275 | 1973 | 18,613 | 1972 | 17,842 | 1971 | 16,986 | 1970 | 16,303 | 1969 | 15,850 | 1968 | 15,429 | 1967 | 15,026 | 1966 | 14,628 | 1965 | 14,231 | 1964 | 13,826 | 1963 | 13,441 | 1962 | 13,068 | 1961 | 12,665 | 1960 | 12,253 |
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