Year | Value | 2022 | 397,662 | 2021 | 403,526 | 2020 | 409,467 | 2019 | 412,253 | 2018 | 415,173 | 2017 | 419,426 | 2016 | 420,520 | 2015 | 417,192 | 2014 | 412,119 | 2013 | 406,226 | 2012 | 400,133 | 2011 | 395,058 | 2010 | 391,874 | 2009 | 390,379 | 2008 | 389,292 | 2007 | 388,056 | 2006 | 387,841 | 2005 | 387,809 | 2004 | 384,933 | 2003 | 378,891 | 2002 | 370,940 | 2001 | 361,649 | 2000 | 352,379 | 1999 | 345,960 | 1998 | 343,160 | 1997 | 342,450 | 1996 | 342,213 | 1995 | 340,188 | 1994 | 334,531 | 1993 | 325,115 | 1992 | 313,768 | 1991 | 303,445 | 1990 | 296,186 | 1989 | 294,741 | 1988 | 300,282 | 1987 | 310,048 | 1986 | 320,993 | 1985 | 330,964 | 1984 | 338,308 | 1983 | 342,440 | 1982 | 343,940 | 1981 | 344,085 | 1980 | 343,154 | 1979 | 342,458 | 1978 | 341,409 | 1977 | 339,839 | 1976 | 336,383 | 1975 | 329,277 | 1974 | 321,231 | 1973 | 311,755 | 1972 | 299,347 | 1971 | 285,507 | 1970 | 273,041 | 1969 | 262,691 | 1968 | 254,100 | 1967 | 247,525 | 1966 | 243,297 | 1965 | 241,829 | 1964 | 243,383 | 1963 | 246,769 | 1962 | 250,797 | 1961 | 254,058 | 1960 | 255,675 |
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