| Year | Value | | 2022 | 8,672,554 | | 2021 | 8,376,132 | | 2020 | 8,107,286 | | 2019 | 7,848,703 | | 2018 | 7,601,141 | | 2017 | 7,372,380 | | 2016 | 7,141,798 | | 2015 | 6,907,085 | | 2014 | 6,678,684 | | 2013 | 6,440,464 | | 2012 | 6,187,797 | | 2011 | 5,943,969 | | 2010 | 5,736,182 | | 2009 | 5,556,012 | | 2008 | 5,396,038 | | 2007 | 5,275,156 | | 2006 | 5,182,549 | | 2005 | 5,074,774 | | 2004 | 4,953,735 | | 2003 | 4,837,143 | | 2002 | 4,705,391 | | 2001 | 4,569,810 | | 2000 | 4,452,808 | | 1999 | 4,345,567 | | 1998 | 4,245,136 | | 1997 | 4,156,297 | | 1996 | 4,068,992 | | 1995 | 3,974,833 | | 1994 | 3,881,995 | | 1993 | 3,786,080 | | 1992 | 3,678,262 | | 1991 | 3,583,732 | | 1990 | 3,511,141 | | 1989 | 3,439,432 | | 1988 | 3,366,288 | | 1987 | 3,296,950 | | 1986 | 3,227,509 | | 1985 | 3,157,918 | | 1984 | 3,085,273 | | 1983 | 3,013,085 | | 1982 | 2,945,561 | | 1981 | 2,886,306 | | 1980 | 2,837,310 | | 1979 | 2,781,898 | | 1978 | 2,711,564 | | 1977 | 2,641,089 | | 1976 | 2,573,916 | | 1975 | 2,504,323 | | 1974 | 2,435,208 | | 1973 | 2,369,143 | | 1972 | 2,308,945 | | 1971 | 2,253,339 | | 1970 | 2,201,294 | | 1969 | 2,153,700 | | 1968 | 2,109,513 | | 1967 | 2,066,994 | | 1966 | 2,025,500 | | 1965 | 1,984,030 | | 1964 | 1,941,884 | | 1963 | 1,900,166 | | 1962 | 1,858,940 | | 1961 | 1,817,798 | | 1960 | 1,777,073 |
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