| Year | Value | | 2022 | 8,177,786 | | 2021 | 7,944,863 | | 2020 | 7,710,655 | | 2019 | 7,488,941 | | 2018 | 7,283,369 | | 2017 | 7,087,433 | | 2016 | 6,912,365 | | 2015 | 6,767,431 | | 2014 | 6,642,214 | | 2013 | 6,532,225 | | 2012 | 6,431,686 | | 2011 | 6,327,442 | | 2010 | 6,216,615 | | 2009 | 6,098,469 | | 2008 | 5,970,179 | | 2007 | 5,829,544 | | 2006 | 5,677,690 | | 2005 | 5,516,875 | | 2004 | 5,343,693 | | 2003 | 5,155,391 | | 2002 | 4,962,269 | | 2001 | 4,772,968 | | 2000 | 4,588,008 | | 1999 | 4,409,900 | | 1998 | 4,245,561 | | 1997 | 4,095,614 | | 1996 | 3,959,772 | | 1995 | 3,840,154 | | 1994 | 3,731,158 | | 1993 | 3,630,028 | | 1992 | 3,537,311 | | 1991 | 3,450,120 | | 1990 | 3,359,506 | | 1989 | 3,264,020 | | 1988 | 3,172,043 | | 1987 | 3,085,140 | | 1986 | 3,005,238 | | 1985 | 2,930,181 | | 1984 | 2,854,134 | | 1983 | 2,789,404 | | 1982 | 2,725,929 | | 1981 | 2,650,761 | | 1980 | 2,572,260 | | 1979 | 2,484,802 | | 1978 | 2,402,926 | | 1977 | 2,345,842 | | 1976 | 2,310,304 | | 1975 | 2,285,574 | | 1974 | 2,275,198 | | 1973 | 2,269,206 | | 1972 | 2,243,360 | | 1971 | 2,201,418 | | 1970 | 2,153,694 | | 1969 | 2,106,790 | | 1968 | 2,065,166 | | 1967 | 2,026,650 | | 1966 | 1,986,901 | | 1965 | 1,943,120 | | 1964 | 1,898,304 | | 1963 | 1,853,427 | | 1962 | 1,808,505 | | 1961 | 1,765,490 | | 1960 | 1,725,750 |
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