| Year | Value | | 2022 | 1,148,611 | | 2021 | 1,142,406 | | 2020 | 1,137,362 | | 2019 | 1,135,452 | | 2018 | 1,136,874 | | 2017 | 1,139,269 | | 2016 | 1,140,325 | | 2015 | 1,137,005 | | 2014 | 1,125,922 | | 2013 | 1,104,190 | | 2012 | 1,074,244 | | 2011 | 1,042,637 | | 2010 | 1,015,137 | | 2009 | 994,941 | | 2008 | 983,768 | | 2007 | 980,610 | | 2006 | 980,310 | | 2005 | 979,520 | | 2004 | 974,709 | | 2003 | 962,010 | | 2002 | 942,949 | | 2001 | 919,842 | | 2000 | 893,782 | | 1999 | 868,045 | | 1998 | 846,420 | | 1997 | 831,292 | | 1996 | 822,801 | | 1995 | 820,467 | | 1994 | 824,458 | | 1993 | 834,990 | | 1992 | 837,407 | | 1991 | 837,521 | | 1990 | 847,725 | | 1989 | 860,153 | | 1988 | 865,104 | | 1987 | 854,974 | | 1986 | 841,734 | | 1985 | 824,863 | | 1984 | 797,013 | | 1983 | 761,084 | | 1982 | 727,189 | | 1981 | 700,781 | | 1980 | 690,084 | | 1979 | 685,240 | | 1978 | 667,350 | | 1977 | 644,760 | | 1976 | 622,205 | | 1975 | 599,803 | | 1974 | 577,932 | | 1973 | 556,987 | | 1972 | 537,106 | | 1971 | 518,432 | | 1970 | 500,591 | | 1969 | 484,077 | | 1968 | 469,003 | | 1967 | 454,794 | | 1966 | 441,277 | | 1965 | 428,231 | | 1964 | 415,631 | | 1963 | 403,496 | | 1962 | 391,764 | | 1961 | 380,468 | | 1960 | 369,647 |
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