| Year | Value | | 2022 | 4,698,995 | | 2021 | 4,682,315 | | 2020 | 4,663,189 | | 2019 | 4,641,317 | | 2018 | 4,617,970 | | 2017 | 4,592,873 | | 2016 | 4,566,493 | | 2015 | 4,540,240 | | 2014 | 4,517,601 | | 2013 | 4,496,954 | | 2012 | 4,473,891 | | 2011 | 4,449,081 | | 2010 | 4,422,346 | | 2009 | 4,393,658 | | 2008 | 4,363,027 | | 2007 | 4,330,680 | | 2006 | 4,296,532 | | 2005 | 4,261,782 | | 2004 | 4,254,485 | | 2003 | 4,259,631 | | 2002 | 4,258,170 | | 2001 | 4,250,561 | | 2000 | 4,237,314 | | 1999 | 4,219,125 | | 1998 | 4,195,491 | | 1997 | 4,165,755 | | 1996 | 4,124,207 | | 1995 | 4,071,143 | | 1994 | 3,997,618 | | 1993 | 3,912,691 | | 1992 | 3,825,263 | | 1991 | 3,736,942 | | 1990 | 3,648,422 | | 1989 | 3,560,393 | | 1988 | 3,473,252 | | 1987 | 3,387,956 | | 1986 | 3,305,074 | | 1985 | 3,225,113 | | 1984 | 3,148,416 | | 1983 | 3,075,575 | | 1982 | 3,007,129 | | 1981 | 2,944,562 | | 1980 | 2,889,385 | | 1979 | 2,842,196 | | 1978 | 2,801,581 | | 1977 | 2,763,656 | | 1976 | 2,723,927 | | 1975 | 2,678,880 | | 1974 | 2,627,528 | | 1973 | 2,572,626 | | 1972 | 2,519,177 | | 1971 | 2,467,892 | | 1970 | 2,417,787 | | 1969 | 2,369,080 | | 1968 | 2,321,627 | | 1967 | 2,275,329 | | 1966 | 2,230,333 | | 1965 | 2,181,414 | | 1964 | 2,133,751 | | 1963 | 2,087,497 | | 1962 | 2,041,775 | | 1961 | 1,997,015 | | 1960 | 1,953,876 |
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