| Year | Value | | 2022 | 8,107,517 | | 2021 | 8,023,546 | | 2020 | 7,907,146 | | 2019 | 7,802,593 | | 2018 | 7,704,991 | | 2017 | 7,591,111 | | 2016 | 7,489,976 | | 2015 | 7,424,201 | | 2014 | 7,370,831 | | 2013 | 7,312,235 | | 2012 | 7,256,174 | | 2011 | 7,199,667 | | 2010 | 7,138,308 | | 2009 | 7,081,895 | | 2008 | 7,065,807 | | 2007 | 7,071,333 | | 2006 | 7,061,933 | | 2005 | 7,020,028 | | 2004 | 6,936,684 | | 2003 | 6,830,944 | | 2002 | 6,697,786 | | 2001 | 6,546,488 | | 2000 | 6,374,964 | | 1999 | 6,186,298 | | 1998 | 6,010,237 | | 1997 | 5,853,453 | | 1996 | 5,699,331 | | 1995 | 5,532,847 | | 1994 | 5,358,718 | | 1993 | 5,175,009 | | 1992 | 4,973,976 | | 1991 | 4,779,853 | | 1990 | 4,599,150 | | 1989 | 4,425,904 | | 1988 | 4,274,406 | | 1987 | 4,148,218 | | 1986 | 4,053,929 | | 1985 | 3,986,905 | | 1984 | 3,929,546 | | 1983 | 3,869,796 | | 1982 | 3,806,096 | | 1981 | 3,731,659 | | 1980 | 3,641,446 | | 1979 | 3,536,476 | | 1978 | 3,415,666 | | 1977 | 3,279,997 | | 1976 | 3,129,971 | | 1975 | 2,970,134 | | 1974 | 2,829,740 | | 1973 | 2,721,770 | | 1972 | 2,644,628 | | 1971 | 2,602,368 | | 1970 | 2,574,639 | | 1969 | 2,553,286 | | 1968 | 2,529,447 | | 1967 | 2,482,645 | | 1966 | 2,420,379 | | 1965 | 2,354,445 | | 1964 | 2,288,630 | | 1963 | 2,227,840 | | 1962 | 2,171,213 | | 1961 | 2,116,601 | | 1960 | 2,063,721 |
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