Year | Value | 2022 | 27,914,536 | 2021 | 27,198,628 | 2020 | 26,491,087 | 2019 | 25,782,341 | 2018 | 25,076,747 | 2017 | 24,393,181 | 2016 | 23,711,630 | 2015 | 23,012,646 | 2014 | 22,299,585 | 2013 | 21,632,850 | 2012 | 21,032,684 | 2011 | 20,448,873 | 2010 | 19,878,036 | 2009 | 19,319,274 | 2008 | 18,777,081 | 2007 | 18,251,866 | 2006 | 17,751,333 | 2005 | 17,275,171 | 2004 | 16,809,407 | 2003 | 16,354,326 | 2002 | 15,914,033 | 2001 | 15,493,253 | 2000 | 15,091,594 | 1999 | 14,698,973 | 1998 | 14,314,599 | 1997 | 13,941,181 | 1996 | 13,575,324 | 1995 | 13,211,647 | 1994 | 12,848,862 | 1993 | 12,486,773 | 1992 | 12,128,604 | 1991 | 11,777,719 | 1990 | 11,430,520 | 1989 | 11,089,222 | 1988 | 10,759,573 | 1987 | 10,433,905 | 1986 | 10,112,712 | 1985 | 9,804,254 | 1984 | 9,508,570 | 1983 | 9,240,672 | 1982 | 9,046,986 | 1981 | 8,829,048 | 1980 | 8,519,891 | 1979 | 8,243,377 | 1978 | 8,013,279 | 1977 | 7,796,825 | 1976 | 7,598,028 | 1975 | 7,397,417 | 1974 | 7,194,697 | 1973 | 6,998,688 | 1972 | 6,809,468 | 1971 | 6,627,350 | 1970 | 6,452,787 | 1969 | 6,286,232 | 1968 | 6,127,193 | 1967 | 5,975,087 | 1966 | 5,829,580 | 1965 | 5,690,086 | 1964 | 5,556,209 | 1963 | 5,427,511 | 1962 | 5,303,841 | 1961 | 5,200,355 | 1960 | 5,117,608 |
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