Year | Value | 2022 | 368,345 | 2021 | 371,358 | 2020 | 374,579 | 2019 | 376,200 | 2018 | 375,201 | 2017 | 371,495 | 2016 | 365,952 | 2015 | 359,168 | 2014 | 352,890 | 2013 | 348,832 | 2012 | 346,685 | 2011 | 346,183 | 2010 | 344,968 | 2009 | 345,431 | 2008 | 344,927 | 2007 | 342,556 | 2006 | 338,591 | 2005 | 333,774 | 2004 | 330,252 | 2003 | 330,127 | 2002 | 333,465 | 2001 | 339,826 | 2000 | 348,715 | 1999 | 357,502 | 1998 | 363,901 | 1997 | 368,776 | 1996 | 373,356 | 1995 | 379,257 | 1994 | 387,692 | 1993 | 396,986 | 1992 | 404,062 | 1991 | 408,768 | 1990 | 410,840 | 1989 | 410,285 | 1988 | 408,293 | 1987 | 406,301 | 1986 | 403,913 | 1985 | 400,543 | 1984 | 396,388 | 1983 | 391,415 | 1982 | 386,848 | 1981 | 382,456 | 1980 | 378,409 | 1979 | 375,196 | 1978 | 373,447 | 1977 | 372,845 | 1976 | 373,774 | 1975 | 369,836 | 1974 | 359,397 | 1973 | 347,092 | 1972 | 329,687 | 1971 | 306,202 | 1970 | 289,324 | 1969 | 283,454 | 1968 | 281,597 | 1967 | 284,559 | 1966 | 291,709 | 1965 | 297,660 | 1964 | 298,987 | 1963 | 298,415 | 1962 | 300,657 | 1961 | 308,063 | 1960 | 317,374 |
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