| Year | Value | | 2022 | 9,041,851 | | 2021 | 8,955,797 | | 2020 | 8,916,864 | | 2019 | 8,879,920 | | 2018 | 8,840,521 | | 2017 | 8,797,566 | | 2016 | 8,736,668 | | 2015 | 8,642,699 | | 2014 | 8,546,356 | | 2013 | 8,479,823 | | 2012 | 8,429,991 | | 2011 | 8,391,643 | | 2010 | 8,363,404 | | 2009 | 8,343,323 | | 2008 | 8,321,496 | | 2007 | 8,295,487 | | 2006 | 8,268,641 | | 2005 | 8,227,829 | | 2004 | 8,171,966 | | 2003 | 8,121,423 | | 2002 | 8,081,957 | | 2001 | 8,042,293 | | 2000 | 8,011,566 | | 1999 | 7,992,324 | | 1998 | 7,976,789 | | 1997 | 7,968,041 | | 1996 | 7,959,017 | | 1995 | 7,948,278 | | 1994 | 7,936,118 | | 1993 | 7,905,633 | | 1992 | 7,840,709 | | 1991 | 7,754,891 | | 1990 | 7,677,850 | | 1989 | 7,619,567 | | 1988 | 7,585,317 | | 1987 | 7,574,586 | | 1986 | 7,569,794 | | 1985 | 7,564,985 | | 1984 | 7,561,434 | | 1983 | 7,561,910 | | 1982 | 7,574,140 | | 1981 | 7,568,710 | | 1980 | 7,549,433 | | 1979 | 7,549,425 | | 1978 | 7,562,305 | | 1977 | 7,568,430 | | 1976 | 7,565,525 | | 1975 | 7,578,903 | | 1974 | 7,599,038 | | 1973 | 7,586,115 | | 1972 | 7,544,201 | | 1971 | 7,500,482 | | 1970 | 7,467,086 | | 1969 | 7,441,055 | | 1968 | 7,415,403 | | 1967 | 7,376,998 | | 1966 | 7,322,066 | | 1965 | 7,270,889 | | 1964 | 7,223,801 | | 1963 | 7,175,811 | | 1962 | 7,129,864 | | 1961 | 7,086,299 | | 1960 | 7,047,539 |
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