Year | Value | 2023 | 49,104 | 2022 | 48,527 | 2021 | 47,968 | 2020 | 47,276 | 2019 | 46,428 | 2018 | 45,468 | 2017 | 44,463 | 2016 | 43,428 | 2015 | 42,384 | 2014 | 41,401 | 2013 | 40,507 | 2012 | 39,700 | 2011 | 38,994 | 2010 | 38,391 | 2009 | 37,858 | 2008 | 37,329 | 2007 | 36,828 | 2006 | 36,284 | 2005 | 35,912 | 2004 | 35,808 | 2003 | 35,671 | 2002 | 34,954 | 2001 | 33,551 | 2000 | 32,053 | 1999 | 30,532 | 1998 | 28,775 | 1997 | 26,723 | 1996 | 25,046 | 1995 | 24,072 | 1994 | 23,529 | 1993 | 22,788 | 1992 | 22,975 | 1991 | 22,949 | 1990 | 20,875 | 1989 | 18,667 | 1988 | 17,114 | 1987 | 15,901 | 1986 | 14,787 | 1985 | 13,848 | 1984 | 13,100 | 1983 | 12,510 | 1982 | 12,001 | 1981 | 11,493 | 1980 | 10,963 | 1979 | 10,428 | 1978 | 9,858 | 1977 | 9,230 | 1976 | 8,601 | 1975 | 8,009 | 1974 | 7,422 |
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