| Year | Value | | 2022 | 10,140,033 | | 2021 | 9,864,121 | | 2020 | 9,589,102 | | 2019 | 9,314,079 | | 2018 | 9,041,177 | | 2017 | 8,772,120 | | 2016 | 8,507,289 | | 2015 | 8,247,891 | | 2014 | 7,993,413 | | 2013 | 7,743,342 | | 2012 | 7,499,172 | | 2011 | 7,260,708 | | 2010 | 7,026,189 | | 2009 | 6,794,701 | | 2008 | 6,569,350 | | 2007 | 6,351,748 | | 2006 | 6,144,175 | | 2005 | 5,947,650 | | 2004 | 5,764,425 | | 2003 | 5,593,084 | | 2002 | 5,431,354 | | 2001 | 5,276,383 | | 2000 | 5,128,364 | | 1999 | 4,992,702 | | 1998 | 4,865,523 | | 1997 | 4,742,217 | | 1996 | 4,622,140 | | 1995 | 4,507,042 | | 1994 | 4,395,365 | | 1993 | 4,286,591 | | 1992 | 4,180,826 | | 1991 | 4,076,662 | | 1990 | 3,972,733 | | 1989 | 3,868,478 | | 1988 | 3,763,744 | | 1987 | 3,658,555 | | 1986 | 3,551,888 | | 1985 | 3,445,553 | | 1984 | 3,341,876 | | 1983 | 3,239,346 | | 1982 | 3,136,429 | | 1981 | 3,036,889 | | 1980 | 2,944,130 | | 1979 | 2,855,575 | | 1978 | 2,769,168 | | 1977 | 2,684,724 | | 1976 | 2,602,559 | | 1975 | 2,523,089 | | 1974 | 2,446,781 | | 1973 | 2,373,692 | | 1972 | 2,303,561 | | 1971 | 2,236,399 | | 1970 | 2,171,939 | | 1969 | 2,106,786 | | 1968 | 2,040,022 | | 1967 | 1,974,724 | | 1966 | 1,911,585 | | 1965 | 1,850,435 | | 1964 | 1,791,447 | | 1963 | 1,734,441 | | 1962 | 1,679,256 | | 1961 | 1,626,102 | | 1960 | 1,574,966 |
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