| Year | Value | | 2022 | 182,610 | | 2021 | 182,554 | | 2020 | 181,529 | | 2019 | 174,121 | | 2018 | 160,679 | | 2017 | 147,379 | | 2016 | 135,330 | | 2015 | 124,418 | | 2014 | 114,857 | | 2013 | 106,856 | | 2012 | 100,307 | | 2011 | 95,053 | | 2010 | 91,367 | | 2009 | 89,766 | | 2008 | 89,399 | | 2007 | 89,054 | | 2006 | 88,413 | | 2005 | 87,512 | | 2004 | 86,411 | | 2003 | 85,067 | | 2002 | 83,621 | | 2001 | 82,056 | | 2000 | 80,400 | | 1999 | 78,893 | | 1998 | 77,740 | | 1997 | 76,886 | | 1996 | 75,984 | | 1995 | 74,866 | | 1994 | 73,610 | | 1993 | 72,347 | | 1992 | 70,991 | | 1991 | 69,402 | | 1990 | 67,699 | | 1989 | 66,007 | | 1988 | 64,322 | | 1987 | 62,562 | | 1986 | 60,598 | | 1985 | 58,498 | | 1984 | 56,339 | | 1983 | 53,899 | | 1982 | 51,302 | | 1981 | 49,052 | | 1980 | 47,239 | | 1979 | 45,666 | | 1978 | 44,404 | | 1977 | 43,527 | | 1976 | 42,841 | | 1975 | 42,107 | | 1974 | 41,294 | | 1973 | 40,461 | | 1972 | 39,560 | | 1971 | 38,666 | | 1970 | 37,931 | | 1969 | 37,340 | | 1968 | 36,862 | | 1967 | 36,638 | | 1966 | 36,739 | | 1965 | 37,070 | | 1964 | 37,535 | | 1963 | 38,079 | | 1962 | 38,658 | | 1961 | 39,266 | | 1960 | 39,914 |
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