| Year | Value | | 2022 | 10,020,707 | | 2021 | 9,903,532 | | 2020 | 9,703,913 | | 2019 | 9,192,897 | | 2018 | 8,841,204 | | 2017 | 8,649,903 | | 2016 | 8,378,471 | | 2015 | 8,065,481 | | 2014 | 7,835,331 | | 2013 | 7,564,951 | | 2012 | 7,231,516 | | 2011 | 6,781,742 | | 2010 | 6,450,743 | | 2009 | 6,273,108 | | 2008 | 6,029,136 | | 2007 | 5,764,166 | | 2006 | 5,632,391 | | 2005 | 5,511,015 | | 2004 | 5,333,552 | | 2003 | 5,248,583 | | 2002 | 5,232,909 | | 2001 | 5,220,757 | | 2000 | 5,279,197 | | 1999 | 5,464,485 | | 1998 | 5,579,646 | | 1997 | 5,607,839 | | 1996 | 5,607,715 | | 1995 | 5,468,657 | | 1994 | 5,209,004 | | 1993 | 5,080,142 | | 1992 | 5,045,124 | | 1991 | 4,931,283 | | 1990 | 4,910,620 | | 1989 | 4,985,580 | | 1988 | 4,887,619 | | 1987 | 4,704,741 | | 1986 | 4,632,403 | | 1985 | 4,535,908 | | 1984 | 4,394,851 | | 1983 | 4,318,774 | | 1982 | 4,324,819 | | 1981 | 4,322,472 | | 1980 | 4,311,888 | | 1979 | 4,288,484 | | 1978 | 4,237,062 | | 1977 | 4,167,223 | | 1976 | 4,045,782 | | 1975 | 3,922,222 | | 1974 | 3,816,495 | | 1973 | 3,680,754 | | 1972 | 3,574,546 | | 1971 | 3,502,106 | | 1970 | 3,398,263 | | 1969 | 3,322,151 | | 1968 | 3,326,845 | | 1967 | 3,311,894 | | 1966 | 3,267,067 | | 1965 | 3,268,791 | | 1964 | 3,272,596 | | 1963 | 3,228,317 | | 1962 | 3,161,473 | | 1961 | 3,131,862 | | 1960 | 3,109,379 |
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