Year | Value | 2022 | 279,754 | 2021 | 276,355 | 2020 | 273,326 | 2019 | 272,758 | 2018 | 273,551 | 2017 | 275,431 | 2016 | 277,263 | 2015 | 280,430 | 2014 | 287,040 | 2013 | 296,400 | 2012 | 308,607 | 2011 | 322,037 | 2010 | 336,199 | 2009 | 349,814 | 2008 | 361,634 | 2007 | 374,353 | 2006 | 387,498 | 2005 | 399,387 | 2004 | 408,928 | 2003 | 414,672 | 2002 | 414,497 | 2001 | 408,773 | 2000 | 400,922 | 1999 | 393,550 | 1998 | 387,605 | 1997 | 382,428 | 1996 | 377,038 | 1995 | 372,359 | 1994 | 369,096 | 1993 | 366,578 | 1992 | 364,279 | 1991 | 364,705 | 1990 | 368,139 | 1989 | 370,631 | 1988 | 371,088 | 1987 | 371,219 | 1986 | 368,744 | 1985 | 363,441 | 1984 | 357,997 | 1983 | 351,482 | 1982 | 343,875 | 1981 | 338,074 | 1980 | 334,008 | 1979 | 329,590 | 1978 | 325,359 | 1977 | 318,063 | 1976 | 308,110 | 1975 | 292,615 | 1974 | 273,878 | 1973 | 261,792 | 1972 | 254,820 | 1971 | 247,579 | 1970 | 246,511 | 1969 | 253,966 | 1968 | 262,378 | 1967 | 272,340 | 1966 | 286,572 | 1965 | 300,796 | 1964 | 311,491 | 1963 | 318,784 | 1962 | 323,638 | 1961 | 325,380 | 1960 | 326,577 |
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