| Year | Value | | 2022 | 10,509,614 | | 2021 | 10,510,975 | | 2020 | 10,473,078 | | 2019 | 10,415,671 | | 2018 | 10,518,335 | | 2017 | 10,658,780 | | 2016 | 10,820,592 | | 2015 | 10,970,622 | | 2014 | 11,042,517 | | 2013 | 11,047,212 | | 2012 | 11,038,400 | | 2011 | 10,998,245 | | 2010 | 10,907,958 | | 2009 | 10,768,573 | | 2008 | 10,586,798 | | 2007 | 10,326,168 | | 2006 | 10,210,369 | | 2005 | 9,976,819 | | 2004 | 9,479,326 | | 2003 | 9,109,631 | | 2002 | 8,912,758 | | 2001 | 8,591,850 | | 2000 | 8,238,831 | | 1999 | 8,002,336 | | 1998 | 7,737,964 | | 1997 | 7,406,505 | | 1996 | 6,928,194 | | 1995 | 6,597,484 | | 1994 | 6,452,789 | | 1993 | 6,217,900 | | 1992 | 5,946,752 | | 1991 | 5,828,718 | | 1990 | 5,729,468 | | 1989 | 5,567,010 | | 1988 | 5,516,376 | | 1987 | 5,534,961 | | 1986 | 5,568,003 | | 1985 | 5,705,409 | | 1984 | 5,995,097 | | 1983 | 6,174,332 | | 1982 | 6,235,400 | | 1981 | 6,277,522 | | 1980 | 6,154,281 | | 1979 | 5,873,306 | | 1978 | 5,767,485 | | 1977 | 5,790,613 | | 1976 | 5,687,461 | | 1975 | 5,688,636 | | 1974 | 5,831,858 | | 1973 | 5,749,199 | | 1972 | 5,514,504 | | 1971 | 5,438,955 | | 1970 | 5,346,946 | | 1969 | 5,181,256 | | 1968 | 5,094,491 | | 1967 | 5,117,466 | | 1966 | 5,127,897 | | 1965 | 5,114,511 | | 1964 | 5,082,944 | | 1963 | 5,042,428 | | 1962 | 4,989,381 | | 1961 | 4,866,999 | | 1960 | 4,748,159 |
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