| Year | Value | | 2022 | 5,287,038 | | 2021 | 5,166,388 | | 2020 | 5,052,214 | | 2019 | 4,945,719 | | 2018 | 4,848,158 | | 2017 | 4,755,312 | | 2016 | 4,667,645 | | 2015 | 4,584,076 | | 2014 | 4,503,674 | | 2013 | 4,426,387 | | 2012 | 4,355,539 | | 2011 | 4,300,463 | | 2010 | 4,262,290 | | 2009 | 4,232,267 | | 2008 | 4,211,896 | | 2007 | 4,201,195 | | 2006 | 4,183,242 | | 2005 | 4,169,863 | | 2004 | 4,170,453 | | 2003 | 4,163,625 | | 2002 | 4,144,889 | | 2001 | 4,069,981 | | 2000 | 3,995,150 | | 1999 | 3,907,086 | | 1998 | 3,803,916 | | 1997 | 3,696,644 | | 1996 | 3,591,770 | | 1995 | 3,488,629 | | 1994 | 3,402,540 | | 1993 | 3,339,948 | | 1992 | 3,245,551 | | 1991 | 3,086,155 | | 1990 | 2,931,815 | | 1989 | 2,781,593 | | 1988 | 2,633,700 | | 1987 | 2,487,202 | | 1986 | 2,345,024 | | 1985 | 2,208,607 | | 1984 | 2,077,470 | | 1983 | 1,951,119 | | 1982 | 1,828,365 | | 1981 | 1,718,619 | | 1980 | 1,577,139 | | 1979 | 1,454,499 | | 1978 | 1,397,959 | | 1977 | 1,345,202 | | 1976 | 1,280,064 | | 1975 | 1,211,673 | | 1974 | 1,145,285 | | 1973 | 1,078,217 | | 1972 | 1,015,830 | | 1971 | 957,639 | | 1970 | 903,331 | | 1969 | 851,455 | | 1968 | 796,768 | | 1967 | 744,625 | | 1966 | 695,850 | | 1965 | 650,173 | | 1964 | 607,412 | | 1963 | 567,279 | | 1962 | 529,792 | | 1961 | 503,346 | | 1960 | 479,900 |
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