Year | Value | 2022 | 332,624 | 2021 | 354,101 | 2020 | 371,128 | 2019 | 380,968 | 2018 | 386,171 | 2017 | 388,477 | 2016 | 385,532 | 2015 | 378,808 | 2014 | 372,753 | 2013 | 366,423 | 2012 | 358,651 | 2011 | 351,727 | 2010 | 346,581 | 2009 | 341,543 | 2008 | 335,978 | 2007 | 331,403 | 2006 | 330,239 | 2005 | 331,404 | 2004 | 332,868 | 2003 | 333,537 | 2002 | 333,322 | 2001 | 332,618 | 2000 | 332,918 | 1999 | 336,405 | 1998 | 346,602 | 1997 | 363,568 | 1996 | 383,305 | 1995 | 403,335 | 1994 | 420,895 | 1993 | 431,511 | 1992 | 434,237 | 1991 | 432,397 | 1990 | 428,742 | 1989 | 423,287 | 1988 | 415,645 | 1987 | 406,219 | 1986 | 394,549 | 1985 | 382,408 | 1984 | 372,294 | 1983 | 364,523 | 1982 | 354,693 | 1981 | 339,146 | 1980 | 316,088 | 1979 | 286,916 | 1978 | 257,554 | 1977 | 237,033 | 1976 | 232,142 | 1975 | 243,589 | 1974 | 266,344 | 1973 | 294,093 | 1972 | 319,699 | 1971 | 337,076 | 1970 | 343,954 | 1969 | 341,853 | 1968 | 334,547 | 1967 | 326,792 | 1966 | 322,639 | 1965 | 323,498 | 1964 | 327,310 | 1963 | 330,517 | 1962 | 330,475 | 1961 | 324,711 | 1960 | 312,243 |
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