| Year | Value | | 2022 | 6,377,754 | | 2021 | 6,342,935 | | 2020 | 6,302,697 | | 2019 | 6,246,175 | | 2018 | 6,156,100 | | 2017 | 6,066,000 | | 2016 | 5,994,859 | | 2015 | 5,928,024 | | 2014 | 5,862,807 | | 2013 | 5,797,852 | | 2012 | 5,730,895 | | 2011 | 5,660,664 | | 2010 | 5,592,614 | | 2009 | 5,529,274 | | 2008 | 5,465,292 | | 2007 | 5,400,875 | | 2006 | 5,336,472 | | 2005 | 5,272,400 | | 2004 | 5,208,923 | | 2003 | 5,145,430 | | 2002 | 5,082,114 | | 2001 | 5,035,573 | | 2000 | 5,012,850 | | 1999 | 4,990,139 | | 1998 | 4,966,373 | | 1997 | 4,940,787 | | 1996 | 4,912,975 | | 1995 | 4,882,961 | | 1994 | 4,850,667 | | 1993 | 4,816,062 | | 1992 | 4,777,592 | | 1991 | 4,733,060 | | 1990 | 4,693,022 | | 1989 | 4,664,217 | | 1988 | 4,631,365 | | 1987 | 4,595,282 | | 1986 | 4,555,910 | | 1985 | 4,514,716 | | 1984 | 4,471,969 | | 1983 | 4,428,018 | | 1982 | 4,387,632 | | 1981 | 4,352,708 | | 1980 | 4,315,171 | | 1979 | 4,275,451 | | 1978 | 4,233,434 | | 1977 | 4,189,395 | | 1976 | 4,143,319 | | 1975 | 4,095,562 | | 1974 | 4,045,979 | | 1973 | 3,972,319 | | 1972 | 3,897,180 | | 1971 | 3,822,443 | | 1970 | 3,747,892 | | 1969 | 3,673,545 | | 1968 | 3,599,386 | | 1967 | 3,526,004 | | 1966 | 3,453,426 | | 1965 | 3,381,746 | | 1964 | 3,310,978 | | 1963 | 3,241,809 | | 1962 | 3,175,842 | | 1961 | 3,113,853 | | 1960 | 3,053,618 |
|