Year | Value | 2022 | 223,941 | 2021 | 235,546 | 2020 | 250,847 | 2019 | 266,022 | 2018 | 280,377 | 2017 | 291,682 | 2016 | 295,130 | 2015 | 291,858 | 2014 | 287,624 | 2013 | 282,706 | 2012 | 276,269 | 2011 | 269,443 | 2010 | 261,699 | 2009 | 252,048 | 2008 | 242,551 | 2007 | 235,316 | 2006 | 231,211 | 2005 | 230,700 | 2004 | 231,859 | 2003 | 233,313 | 2002 | 234,133 | 2001 | 234,848 | 2000 | 236,981 | 1999 | 242,254 | 1998 | 251,954 | 1997 | 267,230 | 1996 | 285,885 | 1995 | 305,784 | 1994 | 327,769 | 1993 | 350,209 | 1992 | 369,759 | 1991 | 388,179 | 1990 | 404,243 | 1989 | 413,839 | 1988 | 418,862 | 1987 | 420,409 | 1986 | 415,892 | 1985 | 409,483 | 1984 | 403,500 | 1983 | 396,520 | 1982 | 390,101 | 1981 | 384,681 | 1980 | 379,671 | 1979 | 375,873 | 1978 | 372,973 | 1977 | 371,131 | 1976 | 371,510 | 1975 | 372,944 | 1974 | 373,329 | 1973 | 373,083 | 1972 | 373,313 | 1971 | 373,845 | 1970 | 376,490 | 1969 | 383,752 | 1968 | 396,772 | 1967 | 414,684 | 1966 | 435,430 | 1965 | 456,291 | 1964 | 474,514 | 1963 | 486,956 | 1962 | 492,637 | 1961 | 493,402 | 1960 | 490,864 |
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