Year | Value | 2022 | 375,200 | 2021 | 378,517 | 2020 | 385,450 | 2019 | 391,720 | 2018 | 395,295 | 2017 | 397,559 | 2016 | 399,848 | 2015 | 402,559 | 2014 | 407,285 | 2013 | 413,616 | 2012 | 417,876 | 2011 | 419,356 | 2010 | 415,587 | 2009 | 410,979 | 2008 | 406,022 | 2007 | 401,288 | 2006 | 396,031 | 2005 | 390,359 | 2004 | 384,548 | 2003 | 378,475 | 2002 | 372,842 | 2001 | 367,123 | 2000 | 362,184 | 1999 | 358,888 | 1998 | 356,928 | 1997 | 356,003 | 1996 | 356,704 | 1995 | 353,187 | 1994 | 343,533 | 1993 | 331,806 | 1992 | 315,009 | 1991 | 292,540 | 1990 | 275,913 | 1989 | 269,782 | 1988 | 267,799 | 1987 | 270,856 | 1986 | 278,744 | 1985 | 285,833 | 1984 | 289,006 | 1983 | 290,488 | 1982 | 293,939 | 1981 | 300,981 | 1980 | 309,361 | 1979 | 315,256 | 1978 | 318,348 | 1977 | 319,264 | 1976 | 318,072 | 1975 | 316,677 | 1974 | 317,146 | 1973 | 319,558 | 1972 | 321,767 | 1971 | 323,651 | 1970 | 326,254 | 1969 | 320,907 | 1968 | 299,358 | 1967 | 270,541 | 1966 | 244,154 | 1965 | 223,551 | 1964 | 219,287 | 1963 | 235,661 | 1962 | 260,866 | 1961 | 283,511 | 1960 | 299,067 |
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