| Year | Value | | 2022 | 1,218,922 | | 2021 | 1,306,037 | | 2020 | 1,279,391 | | 2019 | 1,247,077 | | 2018 | 1,216,153 | | 2017 | 1,185,924 | | 2016 | 1,168,309 | | 2015 | 1,161,658 | | 2014 | 1,165,632 | | 2013 | 1,166,876 | | 2012 | 1,140,434 | | 2011 | 1,091,489 | | 2010 | 1,008,287 | | 2009 | 899,034 | | 2008 | 807,563 | | 2007 | 761,104 | | 2006 | 776,218 | | 2005 | 865,734 | | 2004 | 999,305 | | 2003 | 1,153,963 | | 2002 | 1,318,775 | | 2001 | 1,416,425 | | 2000 | 1,434,829 | | 1999 | 1,390,499 | | 1998 | 1,280,092 | | 1997 | 1,151,291 | | 1996 | 1,068,735 | | 1995 | 1,063,742 | | 1994 | 1,124,140 | | 1993 | 1,232,550 | | 1992 | 1,331,070 | | 1991 | 1,374,352 | | 1990 | 1,362,169 | | 1989 | 1,311,131 | | 1988 | 1,224,934 | | 1987 | 1,110,479 | | 1986 | 1,002,708 | | 1985 | 907,889 | | 1984 | 824,073 | | 1983 | 757,616 | | 1982 | 695,512 | | 1981 | 638,447 | | 1980 | 614,229 | | 1979 | 635,932 | | 1978 | 668,870 | | 1977 | 726,634 | | 1976 | 809,930 | | 1975 | 870,949 | | 1974 | 892,614 | | 1973 | 885,585 | | 1972 | 869,425 | | 1971 | 851,381 | | 1970 | 839,584 | | 1969 | 820,076 | | 1968 | 795,533 | | 1967 | 767,165 | | 1966 | 721,095 | | 1965 | 685,609 | | 1964 | 656,158 | | 1963 | 617,830 | | 1962 | 584,350 | | 1961 | 571,787 | | 1960 | 560,064 |
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