| Year | Value | | 2022 | 9,524,586 | | 2021 | 9,224,209 | | 2020 | 8,936,765 | | 2019 | 8,663,336 | | 2018 | 8,398,705 | | 2017 | 8,138,676 | | 2016 | 7,879,174 | | 2015 | 7,612,920 | | 2014 | 7,336,780 | | 2013 | 7,044,349 | | 2012 | 6,751,896 | | 2011 | 6,496,039 | | 2010 | 6,265,137 | | 2009 | 6,035,984 | | 2008 | 5,818,700 | | 2007 | 5,612,944 | | 2006 | 5,399,010 | | 2005 | 5,169,789 | | 2004 | 4,933,145 | | 2003 | 4,711,353 | | 2002 | 4,514,371 | | 2001 | 4,329,517 | | 2000 | 4,152,923 | | 1999 | 3,976,894 | | 1998 | 3,797,888 | | 1997 | 3,623,863 | | 1996 | 3,464,578 | | 1995 | 3,325,846 | | 1994 | 3,216,268 | | 1993 | 3,131,552 | | 1992 | 3,074,308 | | 1991 | 3,042,064 | | 1990 | 3,025,446 | | 1989 | 2,986,136 | | 1988 | 2,959,441 | | 1987 | 2,926,338 | | 1986 | 2,882,659 | | 1985 | 2,836,122 | | 1984 | 2,786,058 | | 1983 | 2,725,458 | | 1982 | 2,661,225 | | 1981 | 2,601,419 | | 1980 | 2,540,779 | | 1979 | 2,472,629 | | 1978 | 2,407,571 | | 1977 | 2,346,424 | | 1976 | 2,270,732 | | 1975 | 2,188,271 | | 1974 | 2,116,509 | | 1973 | 2,048,113 | | 1972 | 1,979,933 | | 1971 | 1,918,739 | | 1970 | 1,864,501 | | 1969 | 1,815,233 | | 1968 | 1,772,521 | | 1967 | 1,736,019 | | 1966 | 1,702,929 | | 1965 | 1,674,679 | | 1964 | 1,651,739 | | 1963 | 1,633,857 | | 1962 | 1,619,517 | | 1961 | 1,604,832 | | 1960 | 1,584,037 |
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