Year | Value | 2022 | 343,974 | 2021 | 347,866 | 2020 | 339,353 | 2019 | 328,414 | 2018 | 316,377 | 2017 | 304,973 | 2016 | 299,894 | 2015 | 302,561 | 2014 | 308,558 | 2013 | 317,178 | 2012 | 329,377 | 2011 | 344,376 | 2010 | 362,382 | 2009 | 386,493 | 2008 | 407,605 | 2007 | 418,293 | 2006 | 419,063 | 2005 | 413,295 | 2004 | 401,666 | 2003 | 389,240 | 2002 | 382,882 | 2001 | 374,469 | 2000 | 360,021 | 1999 | 349,667 | 1998 | 343,506 | 1997 | 338,479 | 1996 | 337,470 | 1995 | 339,887 | 1994 | 338,030 | 1993 | 332,771 | 1992 | 328,552 | 1991 | 324,725 | 1990 | 321,918 | 1989 | 323,794 | 1988 | 328,557 | 1987 | 331,873 | 1986 | 336,289 | 1985 | 342,249 | 1984 | 348,239 | 1983 | 352,708 | 1982 | 355,231 | 1981 | 358,171 | 1980 | 362,427 | 1979 | 364,179 | 1978 | 365,820 | 1977 | 371,444 | 1976 | 377,265 | 1975 | 378,750 | 1974 | 376,667 | 1973 | 355,495 | 1972 | 315,407 | 1971 | 274,936 | 1970 | 242,403 | 1969 | 233,140 | 1968 | 255,030 | 1967 | 293,029 | 1966 | 329,362 | 1965 | 357,444 | 1964 | 367,800 | 1963 | 365,490 | 1962 | 360,522 | 1961 | 354,293 | 1960 | 346,192 |
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