| Year | Value | | 2022 | 11,273,423 | | 2021 | 11,210,088 | | 2020 | 11,181,543 | | 2019 | 11,050,733 | | 2018 | 10,938,202 | | 2017 | 10,770,172 | | 2016 | 10,543,628 | | 2015 | 10,288,299 | | 2014 | 10,074,256 | | 2013 | 9,931,268 | | 2012 | 9,872,822 | | 2011 | 9,944,741 | | 2010 | 10,149,372 | | 2009 | 10,360,782 | | 2008 | 10,513,572 | | 2007 | 10,587,244 | | 2006 | 10,567,679 | | 2005 | 10,516,968 | | 2004 | 10,553,327 | | 2003 | 10,688,213 | | 2002 | 10,870,218 | | 2001 | 11,068,398 | | 2000 | 11,254,467 | | 1999 | 11,358,306 | | 1998 | 11,395,976 | | 1997 | 11,395,356 | | 1996 | 11,338,307 | | 1995 | 11,220,783 | | 1994 | 11,059,873 | | 1993 | 10,856,687 | | 1992 | 10,563,451 | | 1991 | 10,409,679 | | 1990 | 10,125,956 | | 1989 | 9,571,155 | | 1988 | 9,169,335 | | 1987 | 8,938,068 | | 1986 | 8,574,246 | | 1985 | 8,195,850 | | 1984 | 8,003,493 | | 1983 | 7,799,577 | | 1982 | 7,508,610 | | 1981 | 7,069,163 | | 1980 | 6,771,445 | | 1979 | 6,651,895 | | 1978 | 6,406,259 | | 1977 | 6,105,026 | | 1976 | 5,983,350 | | 1975 | 5,897,988 | | 1974 | 5,730,984 | | 1973 | 5,709,962 | | 1972 | 5,768,791 | | 1971 | 5,806,157 | | 1970 | 5,927,889 | | 1969 | 6,225,577 | | 1968 | 6,410,659 | | 1967 | 6,457,358 | | 1966 | 6,506,178 | | 1965 | 6,420,372 | | 1964 | 6,174,451 | | 1963 | 6,117,296 | | 1962 | 6,170,912 | | 1961 | 6,049,136 | | 1960 | 6,026,411 |
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