| Year | Value | | 2022 | 8,216,182 | | 2021 | 8,170,759 | | 2020 | 8,119,648 | | 2019 | 8,063,081 | | 2018 | 8,001,178 | | 2017 | 7,934,315 | | 2016 | 7,863,355 | | 2015 | 7,788,224 | | 2014 | 7,709,179 | | 2013 | 7,625,644 | | 2012 | 7,538,790 | | 2011 | 7,449,392 | | 2010 | 7,357,571 | | 2009 | 7,265,539 | | 2008 | 7,170,952 | | 2007 | 7,074,356 | | 2006 | 6,975,317 | | 2005 | 6,873,860 | | 2004 | 6,770,217 | | 2003 | 6,664,800 | | 2002 | 6,559,052 | | 2001 | 6,450,059 | | 2000 | 6,335,891 | | 1999 | 6,221,658 | | 1998 | 6,113,086 | | 1997 | 6,006,636 | | 1996 | 5,901,847 | | 1995 | 5,796,192 | | 1994 | 5,689,267 | | 1993 | 5,581,926 | | 1992 | 5,473,038 | | 1991 | 5,362,123 | | 1990 | 5,249,791 | | 1989 | 5,137,329 | | 1988 | 5,025,695 | | 1987 | 4,915,976 | | 1986 | 4,808,325 | | 1985 | 4,703,063 | | 1984 | 4,600,307 | | 1983 | 4,500,312 | | 1982 | 4,403,350 | | 1981 | 4,310,100 | | 1980 | 4,222,128 | | 1979 | 4,139,744 | | 1978 | 4,063,075 | | 1977 | 3,991,116 | | 1976 | 3,922,313 | | 1975 | 3,854,961 | | 1974 | 3,787,858 | | 1973 | 3,720,477 | | 1972 | 3,653,075 | | 1971 | 3,585,090 | | 1970 | 3,516,147 | | 1969 | 3,445,722 | | 1968 | 3,373,861 | | 1967 | 3,300,619 | | 1966 | 3,226,487 | | 1965 | 3,152,015 | | 1964 | 3,077,682 | | 1963 | 3,016,780 | | 1962 | 2,958,885 | | 1961 | 2,901,164 | | 1960 | 2,843,931 |
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