| Year | Value | | 2022 | 8,410,830 | | 2021 | 8,500,410 | | 2020 | 8,545,169 | | 2019 | 8,543,654 | | 2018 | 8,510,334 | | 2017 | 8,447,567 | | 2016 | 8,340,603 | | 2015 | 8,213,378 | | 2014 | 8,103,291 | | 2013 | 7,989,606 | | 2012 | 7,868,062 | | 2011 | 7,780,514 | | 2010 | 7,735,481 | | 2009 | 7,707,116 | | 2008 | 7,714,596 | | 2007 | 7,736,574 | | 2006 | 7,738,784 | | 2005 | 7,709,857 | | 2004 | 7,639,456 | | 2003 | 7,559,198 | | 2002 | 7,481,222 | | 2001 | 7,390,273 | | 2000 | 7,297,326 | | 1999 | 7,203,054 | | 1998 | 7,082,054 | | 1997 | 6,928,311 | | 1996 | 6,756,874 | | 1995 | 6,583,372 | | 1994 | 6,400,698 | | 1993 | 6,227,286 | | 1992 | 6,080,044 | | 1991 | 5,950,968 | | 1990 | 5,810,955 | | 1989 | 5,659,218 | | 1988 | 5,515,083 | | 1987 | 5,365,332 | | 1986 | 5,211,066 | | 1985 | 5,039,395 | | 1984 | 4,841,172 | | 1983 | 4,629,133 | | 1982 | 4,428,157 | | 1981 | 4,268,786 | | 1980 | 4,164,835 | | 1979 | 4,107,097 | | 1978 | 4,064,755 | | 1977 | 4,015,271 | | 1976 | 3,973,747 | | 1975 | 3,927,512 | | 1974 | 3,814,290 | | 1973 | 3,655,630 | | 1972 | 3,502,031 | | 1971 | 3,395,128 | | 1970 | 3,300,079 | | 1969 | 3,165,069 | | 1968 | 3,030,494 | | 1967 | 2,925,711 | | 1966 | 2,852,958 | | 1965 | 2,799,368 | | 1964 | 2,766,822 | | 1963 | 2,744,152 | | 1962 | 2,703,134 | | 1961 | 2,643,647 | | 1960 | 2,581,236 |
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