| Year | Value | | 2022 | 12,914,594 | | 2021 | 12,443,587 | | 2020 | 11,991,269 | | 2019 | 11,553,632 | | 2018 | 11,128,131 | | 2017 | 10,716,126 | | 2016 | 10,315,083 | | 2015 | 9,925,014 | | 2014 | 9,553,826 | | 2013 | 9,201,607 | | 2012 | 8,859,465 | | 2011 | 8,530,903 | | 2010 | 8,219,898 | | 2009 | 7,921,750 | | 2008 | 7,636,788 | | 2007 | 7,364,222 | | 2006 | 7,103,832 | | 2005 | 6,854,818 | | 2004 | 6,616,601 | | 2003 | 6,389,847 | | 2002 | 6,174,051 | | 2001 | 5,967,421 | | 2000 | 5,768,657 | | 1999 | 5,578,322 | | 1998 | 5,394,990 | | 1997 | 5,219,493 | | 1996 | 5,052,195 | | 1995 | 4,888,843 | | 1994 | 4,732,770 | | 1993 | 4,586,569 | | 1992 | 4,447,864 | | 1991 | 4,315,529 | | 1990 | 4,187,921 | | 1989 | 4,065,191 | | 1988 | 3,947,885 | | 1987 | 3,834,599 | | 1986 | 3,725,059 | | 1985 | 3,619,287 | | 1984 | 3,516,921 | | 1983 | 3,417,624 | | 1982 | 3,320,620 | | 1981 | 3,225,425 | | 1980 | 3,132,506 | | 1979 | 3,042,646 | | 1978 | 2,957,054 | | 1977 | 2,876,800 | | 1976 | 2,801,113 | | 1975 | 2,728,602 | | 1974 | 2,659,250 | | 1973 | 2,593,117 | | 1972 | 2,529,314 | | 1971 | 2,467,570 | | 1970 | 2,406,665 | | 1969 | 2,345,927 | | 1968 | 2,285,947 | | 1967 | 2,226,660 | | 1966 | 2,168,304 | | 1965 | 2,111,323 | | 1964 | 2,055,561 | | 1963 | 2,000,845 | | 1962 | 1,947,468 | | 1961 | 1,895,611 | | 1960 | 1,845,463 |
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