| Year | Value | | 2022 | 7,959,499 | | 2021 | 7,719,064 | | 2020 | 7,510,350 | | 2019 | 7,296,530 | | 2018 | 7,081,656 | | 2017 | 6,879,488 | | 2016 | 6,678,878 | | 2015 | 6,476,507 | | 2014 | 6,259,792 | | 2013 | 6,037,509 | | 2012 | 5,845,395 | | 2011 | 5,683,436 | | 2010 | 5,541,728 | | 2009 | 5,420,078 | | 2008 | 5,301,349 | | 2007 | 5,167,289 | | 2006 | 5,022,362 | | 2005 | 4,869,363 | | 2004 | 4,720,290 | | 2003 | 4,584,121 | | 2002 | 4,455,759 | | 2001 | 4,338,615 | | 2000 | 4,237,498 | | 1999 | 4,144,004 | | 1998 | 4,052,523 | | 1997 | 3,966,767 | | 1996 | 3,881,365 | | 1995 | 3,798,090 | | 1994 | 3,723,595 | | 1993 | 3,655,484 | | 1992 | 3,581,742 | | 1991 | 3,508,425 | | 1990 | 3,449,135 | | 1989 | 3,387,819 | | 1988 | 3,327,560 | | 1987 | 3,272,382 | | 1986 | 3,212,101 | | 1985 | 3,152,285 | | 1984 | 3,091,321 | | 1983 | 3,034,382 | | 1982 | 2,980,130 | | 1981 | 2,926,704 | | 1980 | 2,873,318 | | 1979 | 2,806,938 | | 1978 | 2,733,105 | | 1977 | 2,660,672 | | 1976 | 2,591,409 | | 1975 | 2,523,451 | | 1974 | 2,457,028 | | 1973 | 2,394,745 | | 1972 | 2,337,109 | | 1971 | 2,281,655 | | 1970 | 2,226,956 | | 1969 | 2,172,888 | | 1968 | 2,118,887 | | 1967 | 2,067,181 | | 1966 | 2,018,652 | | 1965 | 1,972,367 | | 1964 | 1,928,604 | | 1963 | 1,888,000 | | 1962 | 1,850,380 | | 1961 | 1,814,203 | | 1960 | 1,779,100 |
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