| Year | Value | | 2022 | 7,249,838 | | 2021 | 7,248,826 | | 2020 | 7,228,131 | | 2019 | 7,188,973 | | 2018 | 7,114,817 | | 2017 | 7,041,702 | | 2016 | 6,992,733 | | 2015 | 6,954,087 | | 2014 | 6,928,896 | | 2013 | 6,912,230 | | 2012 | 6,900,715 | | 2011 | 6,892,776 | | 2010 | 6,889,410 | | 2009 | 6,892,326 | | 2008 | 6,898,505 | | 2007 | 6,920,436 | | 2006 | 6,975,785 | | 2005 | 7,027,247 | | 2004 | 7,072,780 | | 2003 | 7,113,287 | | 2002 | 7,147,973 | | 2001 | 7,172,999 | | 2000 | 7,185,504 | | 1999 | 7,184,975 | | 1998 | 7,173,336 | | 1997 | 7,153,546 | | 1996 | 7,129,218 | | 1995 | 7,102,206 | | 1994 | 7,070,025 | | 1993 | 7,033,237 | | 1992 | 6,984,008 | | 1991 | 6,932,983 | | 1990 | 6,875,709 | | 1989 | 6,811,874 | | 1988 | 6,745,929 | | 1987 | 6,679,537 | | 1986 | 6,612,807 | | 1985 | 6,543,237 | | 1984 | 6,470,527 | | 1983 | 6,395,312 | | 1982 | 6,318,947 | | 1981 | 6,243,684 | | 1980 | 6,196,860 | | 1979 | 6,148,130 | | 1978 | 6,099,500 | | 1977 | 6,048,698 | | 1976 | 5,999,470 | | 1975 | 5,950,999 | | 1974 | 5,898,347 | | 1973 | 5,842,325 | | 1972 | 5,781,720 | | 1971 | 5,774,023 | | 1970 | 5,776,756 | | 1969 | 5,773,215 | | 1968 | 5,752,877 | | 1967 | 5,729,566 | | 1966 | 5,702,217 | | 1965 | 5,670,711 | | 1964 | 5,635,104 | | 1963 | 5,597,227 | | 1962 | 5,556,418 | | 1961 | 5,511,688 | | 1960 | 5,410,495 |
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