Year | Value | 2023 | 58,399 | 2022 | 58,832 | 2021 | 58,947 | 2020 | 58,643 | 2019 | 57,897 | 2018 | 56,686 | 2017 | 55,147 | 2016 | 53,617 | 2015 | 52,311 | 2014 | 51,260 | 2013 | 50,444 | 2012 | 49,806 | 2011 | 49,200 | 2010 | 48,487 | 2009 | 47,601 | 2008 | 46,584 | 2007 | 45,544 | 2006 | 44,439 | 2005 | 43,469 | 2004 | 42,828 | 2003 | 42,394 | 2002 | 41,781 | 2001 | 40,842 | 2000 | 39,909 | 1999 | 39,003 | 1998 | 37,938 | 1997 | 36,604 | 1996 | 35,395 | 1995 | 34,612 | 1994 | 34,310 | 1993 | 33,653 | 1992 | 34,311 | 1991 | 34,575 | 1990 | 31,695 | 1989 | 28,524 | 1988 | 26,273 | 1987 | 24,476 | 1986 | 22,786 | 1985 | 21,337 | 1984 | 20,169 | 1983 | 19,230 | 1982 | 18,400 | 1981 | 17,528 | 1980 | 16,504 | 1979 | 15,299 | 1978 | 13,962 | 1977 | 12,607 | 1976 | 11,351 | 1975 | 10,264 | 1974 | 9,367 |
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