Year | Value | 2022 | 667,631 | 2021 | 646,772 | 2020 | 632,092 | 2019 | 623,629 | 2018 | 620,182 | 2017 | 622,117 | 2016 | 629,768 | 2015 | 642,004 | 2014 | 656,750 | 2013 | 670,791 | 2012 | 680,320 | 2011 | 686,350 | 2010 | 684,887 | 2009 | 671,354 | 2008 | 651,829 | 2007 | 632,049 | 2006 | 609,441 | 2005 | 592,861 | 2004 | 587,635 | 2003 | 581,138 | 2002 | 570,508 | 2001 | 558,976 | 2000 | 546,044 | 1999 | 527,696 | 1998 | 503,202 | 1997 | 475,726 | 1996 | 447,569 | 1995 | 418,860 | 1994 | 396,063 | 1993 | 383,609 | 1992 | 375,475 | 1991 | 360,809 | 1990 | 342,599 | 1989 | 328,934 | 1988 | 325,240 | 1987 | 331,799 | 1986 | 332,988 | 1985 | 327,445 | 1984 | 322,127 | 1983 | 319,750 | 1982 | 314,621 | 1981 | 303,970 | 1980 | 280,594 | 1979 | 258,001 | 1978 | 247,568 | 1977 | 234,414 | 1976 | 219,319 | 1975 | 203,805 | 1974 | 189,250 | 1973 | 181,249 | 1972 | 178,458 | 1971 | 174,382 | 1970 | 169,697 | 1969 | 164,411 | 1968 | 158,498 | 1967 | 152,620 | 1966 | 147,277 | 1965 | 142,563 | 1964 | 138,356 | 1963 | 134,779 | 1962 | 131,872 | 1961 | 129,320 | 1960 | 126,929 |
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