Year | Value | 2022 | 299,676 | 2021 | 324,680 | 2020 | 344,995 | 2019 | 367,801 | 2018 | 387,372 | 2017 | 397,708 | 2016 | 399,241 | 2015 | 393,677 | 2014 | 381,857 | 2013 | 369,962 | 2012 | 363,763 | 2011 | 352,733 | 2010 | 335,417 | 2009 | 326,883 | 2008 | 321,982 | 2007 | 317,402 | 2006 | 317,073 | 2005 | 320,239 | 2004 | 318,848 | 2003 | 313,880 | 2002 | 309,843 | 2001 | 306,174 | 2000 | 303,404 | 1999 | 301,284 | 1998 | 301,787 | 1997 | 303,780 | 1996 | 306,438 | 1995 | 310,842 | 1994 | 315,404 | 1993 | 318,435 | 1992 | 320,016 | 1991 | 322,003 | 1990 | 325,029 | 1989 | 328,838 | 1988 | 332,684 | 1987 | 337,591 | 1986 | 342,955 | 1985 | 344,390 | 1984 | 343,046 | 1983 | 324,849 | 1982 | 289,087 | 1981 | 252,099 | 1980 | 222,129 | 1979 | 213,242 | 1978 | 233,020 | 1977 | 268,028 | 1976 | 301,928 | 1975 | 328,268 | 1974 | 338,105 | 1973 | 336,065 | 1972 | 331,027 | 1971 | 324,888 | 1970 | 317,117 | 1969 | 306,991 | 1968 | 298,746 | 1967 | 293,205 | 1966 | 288,654 | 1965 | 287,004 | 1964 | 286,298 | 1963 | 282,935 | 1962 | 278,721 | 1961 | 274,656 | 1960 | 269,014 |
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