Year | Value | 2022 | 25,575,607 | 2021 | 25,415,242 | 2020 | 25,139,588 | 2019 | 24,779,301 | 2018 | 24,331,054 | 2017 | 23,874,571 | 2016 | 23,517,966 | 2015 | 23,272,374 | 2014 | 23,060,580 | 2013 | 22,850,386 | 2012 | 22,632,420 | 2011 | 22,405,198 | 2010 | 22,167,933 | 2009 | 21,925,966 | 2008 | 21,686,623 | 2007 | 21,442,913 | 2006 | 21,186,610 | 2005 | 20,920,388 | 2004 | 20,643,488 | 2003 | 20,357,979 | 2002 | 20,066,543 | 2001 | 19,769,644 | 2000 | 19,469,885 | 1999 | 19,166,664 | 1998 | 18,858,347 | 1997 | 18,544,061 | 1996 | 18,226,168 | 1995 | 17,906,602 | 1994 | 17,580,991 | 1993 | 17,252,549 | 1992 | 16,926,884 | 1991 | 16,605,752 | 1990 | 16,281,573 | 1989 | 15,952,865 | 1988 | 15,628,778 | 1987 | 15,309,275 | 1986 | 14,993,112 | 1985 | 14,679,273 | 1984 | 14,362,438 | 1983 | 14,040,382 | 1982 | 13,722,325 | 1981 | 13,412,729 | 1980 | 13,107,504 | 1979 | 12,808,303 | 1978 | 12,519,254 | 1977 | 12,237,835 | 1976 | 11,970,381 | 1975 | 11,713,426 | 1974 | 11,457,953 | 1973 | 11,204,549 | 1972 | 10,952,691 | 1971 | 10,703,420 | 1970 | 10,450,228 | 1969 | 10,190,531 | 1968 | 9,927,339 | 1967 | 9,659,663 | 1966 | 9,389,974 | 1965 | 9,118,899 | 1964 | 8,847,794 | 1963 | 8,580,512 | 1962 | 8,318,055 | 1961 | 8,061,302 | 1960 | 7,811,878 |
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