Year | Value | 2022 | 269,685 | 2021 | 283,487 | 2020 | 299,311 | 2019 | 313,045 | 2018 | 323,628 | 2017 | 334,395 | 2016 | 342,778 | 2015 | 345,706 | 2014 | 342,921 | 2013 | 338,007 | 2012 | 332,701 | 2011 | 323,971 | 2010 | 314,793 | 2009 | 307,686 | 2008 | 307,416 | 2007 | 309,243 | 2006 | 311,142 | 2005 | 313,295 | 2004 | 315,230 | 2003 | 316,309 | 2002 | 320,721 | 2001 | 323,284 | 2000 | 324,930 | 1999 | 328,230 | 1998 | 335,387 | 1997 | 345,027 | 1996 | 353,110 | 1995 | 343,082 | 1994 | 335,843 | 1993 | 324,748 | 1992 | 314,015 | 1991 | 306,028 | 1990 | 297,172 | 1989 | 287,278 | 1988 | 273,514 | 1987 | 259,813 | 1986 | 246,342 | 1985 | 233,268 | 1984 | 222,962 | 1983 | 213,897 | 1982 | 202,645 | 1981 | 188,814 | 1980 | 169,479 | 1979 | 148,171 | 1978 | 124,971 | 1977 | 109,842 | 1976 | 99,692 | 1975 | 94,738 | 1974 | 92,735 | 1973 | 91,651 | 1972 | 92,210 | 1971 | 94,372 | 1970 | 97,558 | 1969 | 101,606 | 1968 | 106,840 | 1967 | 111,476 | 1966 | 115,083 | 1965 | 120,392 | 1964 | 122,849 | 1963 | 124,328 | 1962 | 123,255 | 1961 | 120,455 | 1960 | 120,241 |
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