Year | Value | 2022 | 349,985 | 2021 | 348,542 | 2020 | 360,712 | 2019 | 371,545 | 2018 | 386,428 | 2017 | 402,695 | 2016 | 420,136 | 2015 | 437,613 | 2014 | 450,467 | 2013 | 455,286 | 2012 | 450,847 | 2011 | 437,982 | 2010 | 419,254 | 2009 | 396,023 | 2008 | 371,720 | 2007 | 352,362 | 2006 | 340,753 | 2005 | 335,575 | 2004 | 336,456 | 2003 | 340,707 | 2002 | 341,797 | 2001 | 338,907 | 2000 | 333,523 | 1999 | 324,835 | 1998 | 317,463 | 1997 | 320,136 | 1996 | 331,583 | 1995 | 346,187 | 1994 | 362,722 | 1993 | 377,991 | 1992 | 388,880 | 1991 | 397,144 | 1990 | 405,251 | 1989 | 410,625 | 1988 | 414,189 | 1987 | 419,416 | 1986 | 423,256 | 1985 | 419,290 | 1984 | 411,139 | 1983 | 401,797 | 1982 | 384,692 | 1981 | 362,329 | 1980 | 346,270 | 1979 | 332,100 | 1978 | 313,616 | 1977 | 297,830 | 1976 | 285,860 | 1975 | 276,514 | 1974 | 272,467 | 1973 | 273,829 | 1972 | 279,865 | 1971 | 289,970 | 1970 | 303,097 | 1969 | 315,304 | 1968 | 324,146 | 1967 | 331,002 | 1966 | 335,877 | 1965 | 340,055 | 1964 | 345,424 | 1963 | 353,167 | 1962 | 361,362 | 1961 | 368,072 | 1960 | 371,482 |
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