| Year | Value | | 2022 | 11,878,511 | | 2021 | 11,516,796 | | 2020 | 11,164,774 | | 2019 | 10,781,884 | | 2018 | 10,367,307 | | 2017 | 9,944,828 | | 2016 | 9,523,883 | | 2015 | 9,106,252 | | 2014 | 8,707,020 | | 2013 | 8,350,063 | | 2012 | 8,035,502 | | 2011 | 7,754,825 | | 2010 | 7,510,422 | | 2009 | 7,299,161 | | 2008 | 7,095,605 | | 2007 | 6,902,671 | | 2006 | 6,719,167 | | 2005 | 6,541,552 | | 2004 | 6,367,226 | | 2003 | 6,201,330 | | 2002 | 6,047,898 | | 2001 | 5,903,559 | | 2000 | 5,767,776 | | 1999 | 5,638,679 | | 1998 | 5,509,841 | | 1997 | 5,376,060 | | 1996 | 5,234,572 | | 1995 | 5,086,509 | | 1994 | 4,931,893 | | 1993 | 4,769,002 | | 1992 | 4,601,454 | | 1991 | 4,434,570 | | 1990 | 4,269,990 | | 1989 | 4,108,953 | | 1988 | 3,953,477 | | 1987 | 3,808,076 | | 1986 | 3,678,461 | | 1985 | 3,567,692 | | 1984 | 3,473,976 | | 1983 | 3,394,854 | | 1982 | 3,325,252 | | 1981 | 3,256,249 | | 1980 | 3,181,652 | | 1979 | 3,099,195 | | 1978 | 3,007,939 | | 1977 | 2,909,668 | | 1976 | 2,810,298 | | 1975 | 2,713,273 | | 1974 | 2,619,473 | | 1973 | 2,530,683 | | 1972 | 2,447,710 | | 1971 | 2,368,723 | | 1970 | 2,294,398 | | 1969 | 2,222,543 | | 1968 | 2,149,537 | | 1967 | 2,076,214 | | 1966 | 2,001,885 | | 1965 | 1,925,473 | | 1964 | 1,848,427 | | 1963 | 1,772,334 | | 1962 | 1,698,651 | | 1961 | 1,631,058 | | 1960 | 1,573,433 |
|