| Year | Value | | 2022 | 11,584,996 | | 2021 | 11,447,569 | | 2020 | 11,306,801 | | 2019 | 11,160,438 | | 2018 | 11,012,421 | | 2017 | 10,863,543 | | 2016 | 10,713,849 | | 2015 | 10,563,757 | | 2014 | 10,412,740 | | 2013 | 10,261,206 | | 2012 | 10,108,539 | | 2011 | 9,954,312 | | 2010 | 9,842,880 | | 2009 | 9,730,638 | | 2008 | 9,575,247 | | 2007 | 9,420,826 | | 2006 | 9,266,288 | | 2005 | 9,111,900 | | 2004 | 8,961,489 | | 2003 | 8,812,245 | | 2002 | 8,661,546 | | 2001 | 8,511,728 | | 2000 | 8,360,225 | | 1999 | 8,208,941 | | 1998 | 8,060,896 | | 1997 | 7,915,172 | | 1996 | 7,770,593 | | 1995 | 7,627,316 | | 1994 | 7,486,091 | | 1993 | 7,345,940 | | 1992 | 7,205,780 | | 1991 | 7,066,055 | | 1990 | 6,925,331 | | 1989 | 6,784,161 | | 1988 | 6,644,959 | | 1987 | 6,508,349 | | 1986 | 6,375,097 | | 1985 | 6,245,539 | | 1984 | 6,119,932 | | 1983 | 5,997,739 | | 1982 | 5,877,684 | | 1981 | 5,760,197 | | 1980 | 5,646,676 | | 1979 | 5,536,423 | | 1978 | 5,428,667 | | 1977 | 5,323,827 | | 1976 | 5,222,342 | | 1975 | 5,124,560 | | 1974 | 5,030,652 | | 1973 | 4,940,710 | | 1972 | 4,853,117 | | 1971 | 4,766,423 | | 1970 | 4,680,812 | | 1969 | 4,596,642 | | 1968 | 4,514,006 | | 1967 | 4,432,716 | | 1966 | 4,352,949 | | 1965 | 4,274,348 | | 1964 | 4,196,349 | | 1963 | 4,122,260 | | 1962 | 4,049,504 | | 1961 | 3,974,934 | | 1960 | 3,901,139 |
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