| Year | Value | | 2022 | 3,855,633 | | 2021 | 4,013,750 | | 2020 | 4,205,901 | | 2019 | 4,487,336 | | 2018 | 4,837,512 | | 2017 | 5,140,469 | | 2016 | 5,214,476 | | 2015 | 5,029,855 | | 2014 | 4,758,136 | | 2013 | 4,484,452 | | 2012 | 4,251,746 | | 2011 | 4,212,148 | | 2010 | 4,342,642 | | 2009 | 4,355,173 | | 2008 | 4,232,391 | | 2007 | 4,101,515 | | 2006 | 3,985,426 | | 2005 | 3,907,384 | | 2004 | 3,902,677 | | 2003 | 3,929,792 | | 2002 | 3,918,193 | | 2001 | 3,865,795 | | 2000 | 3,790,787 | | 1999 | 3,718,218 | | 1998 | 3,648,117 | | 1997 | 3,571,195 | | 1996 | 3,499,619 | | 1995 | 3,435,194 | | 1994 | 3,364,010 | | 1993 | 3,278,125 | | 1992 | 3,181,788 | | 1991 | 3,069,688 | | 1990 | 2,960,420 | | 1989 | 2,847,548 | | 1988 | 2,717,322 | | 1987 | 2,601,437 | | 1986 | 2,509,679 | | 1985 | 2,422,891 | | 1984 | 2,362,673 | | 1983 | 2,340,973 | | 1982 | 2,318,305 | | 1981 | 2,284,679 | | 1980 | 2,239,112 | | 1979 | 2,187,572 | | 1978 | 2,130,267 | | 1977 | 2,064,370 | | 1976 | 1,978,654 | | 1975 | 1,887,519 | | 1974 | 1,800,584 | | 1973 | 1,723,156 | | 1972 | 1,662,612 | | 1971 | 1,627,497 | | 1970 | 1,592,546 | | 1969 | 1,561,687 | | 1968 | 1,520,212 | | 1967 | 1,469,507 | | 1966 | 1,411,250 | | 1965 | 1,359,131 | | 1964 | 1,316,816 | | 1963 | 1,272,288 | | 1962 | 1,226,662 | | 1961 | 1,184,604 | | 1960 | 1,145,434 |
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