Year | Value | 2022 | 40,807 | 2021 | 42,079 | 2020 | 43,455 | 2019 | 44,852 | 2018 | 46,064 | 2017 | 46,869 | 2016 | 47,049 | 2015 | 46,635 | 2014 | 45,783 | 2013 | 44,699 | 2012 | 43,643 | 2011 | 42,784 | 2010 | 41,986 | 2009 | 41,015 | 2008 | 40,035 | 2007 | 39,089 | 2006 | 38,162 | 2005 | 37,362 | 2004 | 36,460 | 2003 | 35,126 | 2002 | 33,238 | 2001 | 30,892 | 2000 | 28,415 | 1999 | 26,306 | 1998 | 24,532 | 1997 | 22,977 | 1996 | 21,609 | 1995 | 20,558 | 1994 | 19,660 | 1993 | 18,869 | 1992 | 18,512 | 1991 | 18,389 | 1990 | 18,324 | 1989 | 18,328 | 1988 | 18,326 | 1987 | 18,164 | 1986 | 17,770 | 1985 | 17,336 | 1984 | 17,025 | 1983 | 16,934 | 1982 | 17,263 | 1981 | 17,926 | 1980 | 18,676 | 1979 | 19,211 | 1978 | 19,386 | 1977 | 19,260 | 1976 | 18,701 | 1975 | 17,839 | 1974 | 16,838 | 1973 | 15,889 | 1972 | 15,127 | 1971 | 14,608 | 1970 | 14,310 | 1969 | 14,176 | 1968 | 14,129 | 1967 | 14,100 | 1966 | 14,002 | 1965 | 13,753 | 1964 | 13,364 | 1963 | 12,885 | 1962 | 12,327 | 1961 | 11,747 | 1960 | 11,478 |
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