| Year | Value | | 2022 | 9,644,895 | | 2021 | 9,432,685 | | 2020 | 9,233,591 | | 2019 | 9,055,069 | | 2018 | 8,894,210 | | 2017 | 8,722,494 | | 2016 | 8,555,140 | | 2015 | 8,394,127 | | 2014 | 8,247,686 | | 2013 | 8,122,323 | | 2012 | 7,977,696 | | 2011 | 7,778,899 | | 2010 | 7,516,755 | | 2009 | 7,223,660 | | 2008 | 6,932,311 | | 2007 | 6,659,691 | | 2006 | 6,415,651 | | 2005 | 6,210,429 | | 2004 | 6,030,188 | | 2003 | 5,866,229 | | 2002 | 5,731,118 | | 2001 | 5,563,240 | | 2000 | 5,325,004 | | 1999 | 5,110,287 | | 1998 | 4,949,633 | | 1997 | 4,809,193 | | 1996 | 4,688,081 | | 1995 | 4,577,127 | | 1994 | 4,497,191 | | 1993 | 4,434,305 | | 1992 | 4,415,852 | | 1991 | 4,391,955 | | 1990 | 4,299,389 | | 1989 | 4,195,263 | | 1988 | 4,076,748 | | 1987 | 3,936,849 | | 1986 | 3,784,808 | | 1985 | 3,626,944 | | 1984 | 3,488,769 | | 1983 | 3,355,482 | | 1982 | 3,179,067 | | 1981 | 2,961,668 | | 1980 | 2,723,816 | | 1979 | 2,529,141 | | 1978 | 2,406,864 | | 1977 | 2,324,905 | | 1976 | 2,265,285 | | 1975 | 2,227,247 | | 1974 | 2,200,078 | | 1973 | 2,168,849 | | 1972 | 2,130,422 | | 1971 | 2,086,961 | | 1970 | 2,038,497 | | 1969 | 1,983,326 | | 1968 | 1,926,113 | | 1967 | 1,872,101 | | 1966 | 1,823,075 | | 1965 | 1,778,642 | | 1964 | 1,737,878 | | 1963 | 1,701,367 | | 1962 | 1,668,716 | | 1961 | 1,637,347 | | 1960 | 1,599,849 |
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