| Year | Value | | 2022 | 10,066,395 | | 2021 | 10,045,897 | | 2020 | 10,044,726 | | 2019 | 10,094,546 | | 2018 | 10,163,725 | | 2017 | 10,240,511 | | 2016 | 10,316,736 | | 2015 | 10,362,048 | | 2014 | 10,347,326 | | 2013 | 10,280,729 | | 2012 | 10,183,506 | | 2011 | 10,071,806 | | 2010 | 9,958,323 | | 2009 | 9,835,706 | | 2008 | 9,713,988 | | 2007 | 9,598,348 | | 2006 | 9,478,813 | | 2005 | 9,355,320 | | 2004 | 9,235,227 | | 2003 | 9,105,798 | | 2002 | 8,965,054 | | 2001 | 8,823,557 | | 2000 | 8,667,928 | | 1999 | 8,493,450 | | 1998 | 8,305,665 | | 1997 | 8,104,660 | | 1996 | 7,889,201 | | 1995 | 7,665,363 | | 1994 | 7,433,931 | | 1993 | 7,192,352 | | 1992 | 6,941,942 | | 1991 | 6,684,238 | | 1990 | 6,420,687 | | 1989 | 6,157,254 | | 1988 | 5,897,364 | | 1987 | 5,638,885 | | 1986 | 5,382,131 | | 1985 | 5,130,361 | | 1984 | 4,899,236 | | 1983 | 4,707,319 | | 1982 | 4,561,861 | | 1981 | 4,469,150 | | 1980 | 4,421,559 | | 1979 | 4,394,827 | | 1978 | 4,373,072 | | 1977 | 4,350,676 | | 1976 | 4,320,605 | | 1975 | 4,286,517 | | 1974 | 4,253,803 | | 1973 | 4,216,500 | | 1972 | 4,171,706 | | 1971 | 4,117,446 | | 1970 | 4,052,395 | | 1969 | 3,976,370 | | 1968 | 3,891,640 | | 1967 | 3,804,686 | | 1966 | 3,718,967 | | 1965 | 3,632,153 | | 1964 | 3,536,735 | | 1963 | 3,433,990 | | 1962 | 3,329,609 | | 1961 | 3,221,032 | | 1960 | 3,106,865 |
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