| Year | Value | | 2022 | 9,924,861 | | 2021 | 9,670,800 | | 2020 | 9,418,758 | | 2019 | 9,168,342 | | 2018 | 8,922,676 | | 2017 | 8,683,181 | | 2016 | 8,449,079 | | 2015 | 8,219,165 | | 2014 | 7,992,387 | | 2013 | 7,769,339 | | 2012 | 7,550,255 | | 2011 | 7,334,829 | | 2010 | 7,122,580 | | 2009 | 6,914,014 | | 2008 | 6,710,463 | | 2007 | 6,518,572 | | 2006 | 6,340,083 | | 2005 | 6,170,251 | | 2004 | 6,009,766 | | 2003 | 5,859,615 | | 2002 | 5,719,293 | | 2001 | 5,587,759 | | 2000 | 5,464,600 | | 1999 | 5,349,843 | | 1998 | 5,236,453 | | 1997 | 5,126,131 | | 1996 | 5,023,324 | | 1995 | 4,922,616 | | 1994 | 4,929,944 | | 1993 | 4,991,571 | | 1992 | 4,923,007 | | 1991 | 4,785,228 | | 1990 | 4,643,501 | | 1989 | 4,466,243 | | 1988 | 4,262,030 | | 1987 | 4,036,938 | | 1986 | 3,846,497 | | 1985 | 3,706,698 | | 1984 | 3,566,260 | | 1983 | 3,428,651 | | 1982 | 3,294,468 | | 1981 | 3,164,970 | | 1980 | 3,041,298 | | 1979 | 2,924,593 | | 1978 | 2,816,680 | | 1977 | 2,720,160 | | 1976 | 2,635,088 | | 1975 | 2,557,641 | | 1974 | 2,484,910 | | 1973 | 2,416,456 | | 1972 | 2,352,075 | | 1971 | 2,291,206 | | 1970 | 2,233,465 | | 1969 | 2,178,279 | | 1968 | 2,124,497 | | 1967 | 2,071,722 | | 1966 | 2,020,506 | | 1965 | 1,970,993 | | 1964 | 1,922,991 | | 1963 | 1,876,131 | | 1962 | 1,830,584 | | 1961 | 1,786,842 | | 1960 | 1,744,786 |
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