Year | Value | 2022 | 278,057 | 2021 | 286,414 | 2020 | 295,511 | 2019 | 303,501 | 2018 | 308,879 | 2017 | 313,769 | 2016 | 319,970 | 2015 | 324,467 | 2014 | 326,275 | 2013 | 325,982 | 2012 | 322,601 | 2011 | 317,361 | 2010 | 313,859 | 2009 | 315,203 | 2008 | 321,087 | 2007 | 329,972 | 2006 | 339,623 | 2005 | 348,601 | 2004 | 356,545 | 2003 | 363,424 | 2002 | 368,542 | 2001 | 371,317 | 2000 | 372,365 | 1999 | 373,161 | 1998 | 375,805 | 1997 | 382,286 | 1996 | 393,556 | 1995 | 410,210 | 1994 | 429,763 | 1993 | 447,832 | 1992 | 460,245 | 1991 | 463,884 | 1990 | 458,371 | 1989 | 447,293 | 1988 | 434,783 | 1987 | 422,161 | 1986 | 406,372 | 1985 | 389,535 | 1984 | 377,199 | 1983 | 369,687 | 1982 | 369,775 | 1981 | 383,838 | 1980 | 410,375 | 1979 | 442,464 | 1978 | 477,892 | 1977 | 514,246 | 1976 | 549,526 | 1975 | 580,685 | 1974 | 606,067 | 1973 | 626,005 | 1972 | 639,983 | 1971 | 646,861 | 1970 | 649,041 | 1969 | 650,007 | 1968 | 649,742 | 1967 | 645,979 | 1966 | 636,401 | 1965 | 620,986 | 1964 | 600,142 | 1963 | 575,074 | 1962 | 549,875 | 1961 | 528,063 | 1960 | 509,793 |
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