| Year | Value | | 2022 | 1,264,425 | | 2021 | 1,291,869 | | 2020 | 1,200,721 | | 2019 | 1,075,293 | | 2018 | 968,321 | | 2017 | 913,054 | | 2016 | 927,679 | | 2015 | 1,020,782 | | 2014 | 1,159,713 | | 2013 | 1,324,546 | | 2012 | 1,489,534 | | 2011 | 1,571,449 | | 2010 | 1,562,874 | | 2009 | 1,484,057 | | 2008 | 1,338,390 | | 2007 | 1,185,998 | | 2006 | 1,088,074 | | 2005 | 1,081,997 | | 2004 | 1,153,151 | | 2003 | 1,275,379 | | 2002 | 1,389,584 | | 2001 | 1,465,463 | | 2000 | 1,502,923 | | 1999 | 1,511,316 | | 1998 | 1,498,737 | | 1997 | 1,458,430 | | 1996 | 1,401,475 | | 1995 | 1,317,540 | | 1994 | 1,224,565 | | 1993 | 1,137,714 | | 1992 | 1,042,140 | | 1991 | 955,300 | | 1990 | 922,993 | | 1989 | 961,200 | | 1988 | 1,020,685 | | 1987 | 1,118,120 | | 1986 | 1,243,975 | | 1985 | 1,325,382 | | 1984 | 1,339,751 | | 1983 | 1,314,355 | | 1982 | 1,270,498 | | 1981 | 1,217,314 | | 1980 | 1,182,433 | | 1979 | 1,157,163 | | 1978 | 1,126,953 | | 1977 | 1,089,856 | | 1976 | 1,050,274 | | 1975 | 1,006,410 | | 1974 | 965,188 | | 1973 | 919,411 | | 1972 | 872,102 | | 1971 | 829,237 | | 1970 | 782,893 | | 1969 | 752,894 | | 1968 | 739,592 | | 1967 | 726,757 | | 1966 | 706,640 | | 1965 | 683,160 | | 1964 | 659,237 | | 1963 | 652,211 | | 1962 | 643,679 | | 1961 | 619,063 | | 1960 | 593,757 |
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