| Year | Value | | 2022 | 409,926 | | 2021 | 407,066 | | 2020 | 409,107 | | 2019 | 410,662 | | 2018 | 411,399 | | 2017 | 412,117 | | 2016 | 413,645 | | 2015 | 415,458 | | 2014 | 417,118 | | 2013 | 420,151 | | 2012 | 423,607 | | 2011 | 425,245 | | 2010 | 424,820 | | 2009 | 424,069 | | 2008 | 423,176 | | 2007 | 422,596 | | 2006 | 422,804 | | 2005 | 423,570 | | 2004 | 424,271 | | 2003 | 425,074 | | 2002 | 425,998 | | 2001 | 426,956 | | 2000 | 427,924 | | 1999 | 423,427 | | 1998 | 419,548 | | 1997 | 420,938 | | 1996 | 423,107 | | 1995 | 426,680 | | 1994 | 431,632 | | 1993 | 438,168 | | 1992 | 446,743 | | 1991 | 452,063 | | 1990 | 451,436 | | 1989 | 448,250 | | 1988 | 446,860 | | 1987 | 447,304 | | 1986 | 447,040 | | 1985 | 446,909 | | 1984 | 447,111 | | 1983 | 447,388 | | 1982 | 447,486 | | 1981 | 447,430 | | 1980 | 447,435 | | 1979 | 447,886 | | 1978 | 450,848 | | 1977 | 455,120 | | 1976 | 459,138 | | 1975 | 463,267 | | 1974 | 467,017 | | 1973 | 470,361 | | 1972 | 473,219 | | 1971 | 475,284 | | 1970 | 476,747 | | 1969 | 480,160 | | 1968 | 484,868 | | 1967 | 490,134 | | 1966 | 495,998 | | 1965 | 500,376 | | 1964 | 503,223 | | 1963 | 505,607 | | 1962 | 508,171 | | 1961 | 510,808 | | 1960 | 514,503 |
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