Year | Value | 2022 | 352,729 | 2021 | 338,305 | 2020 | 340,553 | 2019 | 341,259 | 2018 | 343,749 | 2017 | 343,497 | 2016 | 339,740 | 2015 | 333,378 | 2014 | 323,697 | 2013 | 316,327 | 2012 | 318,866 | 2011 | 329,339 | 2010 | 343,309 | 2009 | 359,159 | 2008 | 372,374 | 2007 | 380,466 | 2006 | 386,851 | 2005 | 392,355 | 2004 | 395,797 | 2003 | 399,042 | 2002 | 404,350 | 2001 | 409,149 | 2000 | 406,341 | 1999 | 398,018 | 1998 | 388,713 | 1997 | 372,090 | 1996 | 349,646 | 1995 | 332,820 | 1994 | 318,966 | 1993 | 301,354 | 1992 | 285,457 | 1991 | 273,907 | 1990 | 265,880 | 1989 | 262,369 | 1988 | 263,456 | 1987 | 269,092 | 1986 | 278,302 | 1985 | 289,030 | 1984 | 298,692 | 1983 | 306,715 | 1982 | 312,951 | 1981 | 317,383 | 1980 | 321,811 | 1979 | 327,568 | 1978 | 334,724 | 1977 | 342,803 | 1976 | 349,233 | 1975 | 351,400 | 1974 | 342,233 | 1973 | 313,699 | 1972 | 274,182 | 1971 | 236,465 | 1970 | 211,847 | 1969 | 211,921 | 1968 | 238,068 | 1967 | 276,287 | 1966 | 313,034 | 1965 | 342,094 | 1964 | 356,260 | 1963 | 359,182 | 1962 | 359,268 | 1961 | 358,614 | 1960 | 357,107 |
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