| Year | Value | | 2022 | 11,374,607 | | 2021 | 11,089,986 | | 2020 | 10,804,024 | | 2019 | 10,520,378 | | 2018 | 10,241,740 | | 2017 | 9,965,204 | | 2016 | 9,688,281 | | 2015 | 9,412,600 | | 2014 | 9,140,912 | | 2013 | 8,875,716 | | 2012 | 8,615,632 | | 2011 | 8,361,047 | | 2010 | 8,117,350 | | 2009 | 7,882,660 | | 2008 | 7,655,083 | | 2007 | 7,433,720 | | 2006 | 7,215,087 | | 2005 | 6,999,405 | | 2004 | 6,790,360 | | 2003 | 6,589,269 | | 2002 | 6,396,427 | | 2001 | 6,210,869 | | 2000 | 6,031,953 | | 1999 | 5,860,926 | | 1998 | 5,697,870 | | 1997 | 5,546,538 | | 1996 | 5,405,710 | | 1995 | 5,268,597 | | 1994 | 5,134,815 | | 1993 | 5,006,076 | | 1992 | 4,881,710 | | 1991 | 4,760,745 | | 1990 | 4,640,485 | | 1989 | 4,520,467 | | 1988 | 4,402,927 | | 1987 | 4,286,719 | | 1986 | 4,171,406 | | 1985 | 4,056,018 | | 1984 | 3,941,764 | | 1983 | 3,831,322 | | 1982 | 3,725,787 | | 1981 | 3,625,180 | | 1980 | 3,528,021 | | 1979 | 3,434,330 | | 1978 | 3,345,535 | | 1977 | 3,262,042 | | 1976 | 3,185,073 | | 1975 | 3,114,751 | | 1974 | 3,049,295 | | 1973 | 2,988,242 | | 1972 | 2,930,778 | | 1971 | 2,875,573 | | 1970 | 2,821,215 | | 1969 | 2,767,361 | | 1968 | 2,714,692 | | 1967 | 2,663,209 | | 1966 | 2,613,528 | | 1965 | 2,565,282 | | 1964 | 2,518,513 | | 1963 | 2,473,856 | | 1962 | 2,430,789 | | 1961 | 2,388,880 | | 1960 | 2,348,133 |
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