Year | Value | 2022 | 646,635 | 2021 | 623,993 | 2020 | 617,053 | 2019 | 611,186 | 2018 | 604,484 | 2017 | 597,345 | 2016 | 590,829 | 2015 | 584,087 | 2014 | 576,512 | 2013 | 568,252 | 2012 | 559,761 | 2011 | 552,469 | 2010 | 548,497 | 2009 | 549,283 | 2008 | 551,609 | 2007 | 558,530 | 2006 | 571,104 | 2005 | 582,338 | 2004 | 589,868 | 2003 | 591,526 | 2002 | 586,658 | 2001 | 576,061 | 2000 | 562,156 | 1999 | 546,942 | 1998 | 534,794 | 1997 | 528,853 | 1996 | 524,886 | 1995 | 523,301 | 1994 | 525,677 | 1993 | 522,143 | 1992 | 506,238 | 1991 | 478,130 | 1990 | 436,813 | 1989 | 390,556 | 1988 | 351,976 | 1987 | 314,813 | 1986 | 297,070 | 1985 | 312,755 | 1984 | 362,385 | 1983 | 423,661 | 1982 | 475,127 | 1981 | 506,569 | 1980 | 516,103 | 1979 | 500,153 | 1978 | 461,669 | 1977 | 411,787 | 1976 | 370,793 | 1975 | 352,440 | 1974 | 355,060 | 1973 | 376,545 | 1972 | 408,961 | 1971 | 434,704 | 1970 | 441,004 | 1969 | 427,956 | 1968 | 401,187 | 1967 | 365,358 | 1966 | 327,604 | 1965 | 294,448 | 1964 | 266,793 | 1963 | 242,692 | 1962 | 224,683 | 1961 | 213,529 | 1960 | 209,340 |
|