Year | Value | 2022 | 618,040 | 2021 | 612,985 | 2020 | 607,065 | 2019 | 600,301 | 2018 | 593,715 | 2017 | 587,559 | 2016 | 581,453 | 2015 | 575,475 | 2014 | 569,682 | 2013 | 563,947 | 2012 | 558,111 | 2011 | 552,146 | 2010 | 546,080 | 2009 | 539,987 | 2008 | 533,938 | 2007 | 527,946 | 2006 | 522,023 | 2005 | 516,220 | 2004 | 510,572 | 2003 | 503,780 | 2002 | 495,666 | 2001 | 487,394 | 2000 | 478,998 | 1999 | 470,458 | 1998 | 461,749 | 1997 | 452,887 | 1996 | 443,834 | 1995 | 434,490 | 1994 | 426,548 | 1993 | 422,375 | 1992 | 419,521 | 1991 | 415,981 | 1990 | 412,756 | 1989 | 408,360 | 1988 | 402,139 | 1987 | 396,867 | 1986 | 392,372 | 1985 | 387,171 | 1984 | 382,617 | 1983 | 379,409 | 1982 | 377,288 | 1981 | 375,859 | 1980 | 375,112 | 1979 | 377,362 | 1978 | 381,885 | 1977 | 385,810 | 1976 | 389,231 | 1975 | 392,137 | 1974 | 394,519 | 1973 | 396,331 | 1972 | 397,529 | 1971 | 392,026 | 1970 | 379,918 | 1969 | 367,618 | 1968 | 355,468 | 1967 | 343,620 | 1966 | 332,142 | 1965 | 321,069 | 1964 | 310,288 | 1963 | 299,332 | 1962 | 288,291 | 1961 | 277,969 | 1960 | 268,396 |
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