| Year | Value | | 2022 | 2,696,311 | | 2021 | 2,579,141 | | 2020 | 2,469,028 | | 2019 | 2,349,187 | | 2018 | 2,219,539 | | 2017 | 2,096,857 | | 2016 | 1,993,671 | | 2015 | 1,910,696 | | 2014 | 1,843,639 | | 2013 | 1,789,273 | | 2012 | 1,742,866 | | 2011 | 1,704,597 | | 2010 | 1,673,592 | | 2009 | 1,650,466 | | 2008 | 1,633,689 | | 2007 | 1,617,115 | | 2006 | 1,598,257 | | 2005 | 1,576,487 | | 2004 | 1,550,575 | | 2003 | 1,519,985 | | 2002 | 1,484,319 | | 2001 | 1,443,903 | | 2000 | 1,400,974 | | 1999 | 1,355,735 | | 1998 | 1,310,033 | | 1997 | 1,258,226 | | 1996 | 1,200,612 | | 1995 | 1,151,140 | | 1994 | 1,109,207 | | 1993 | 1,066,293 | | 1992 | 1,024,942 | | 1991 | 988,299 | | 1990 | 956,716 | | 1989 | 922,891 | | 1988 | 897,875 | | 1987 | 876,489 | | 1986 | 852,879 | | 1985 | 830,168 | | 1984 | 809,678 | | 1983 | 790,475 | | 1982 | 772,853 | | 1981 | 756,966 | | 1980 | 740,941 | | 1979 | 722,971 | | 1978 | 706,527 | | 1977 | 691,207 | | 1976 | 668,474 | | 1975 | 643,119 | | 1974 | 625,020 | | 1973 | 610,981 | | 1972 | 597,567 | | 1971 | 585,026 | | 1970 | 573,291 | | 1969 | 561,810 | | 1968 | 550,067 | | 1967 | 538,050 | | 1966 | 525,791 | | 1965 | 510,695 | | 1964 | 492,816 | | 1963 | 475,187 | | 1962 | 458,623 | | 1961 | 443,644 | | 1960 | 432,234 |
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