| Year | Value | | 2022 | 8,926,839 | | 2021 | 8,691,532 | | 2020 | 8,388,482 | | 2019 | 8,119,718 | | 2018 | 7,842,962 | | 2017 | 7,435,335 | | 2016 | 6,949,016 | | 2015 | 6,614,073 | | 2014 | 6,425,580 | | 2013 | 6,186,507 | | 2012 | 5,944,512 | | 2011 | 5,786,620 | | 2010 | 5,651,131 | | 2009 | 5,500,086 | | 2008 | 5,384,472 | | 2007 | 5,304,367 | | 2006 | 5,252,017 | | 2005 | 5,213,492 | | 2004 | 5,246,245 | | 2003 | 5,282,160 | | 2002 | 5,305,813 | | 2001 | 5,375,553 | | 2000 | 5,422,127 | | 1999 | 5,377,284 | | 1998 | 5,431,760 | | 1997 | 5,516,415 | | 1996 | 5,458,100 | | 1995 | 5,447,353 | | 1994 | 5,502,965 | | 1993 | 5,374,841 | | 1992 | 5,168,315 | | 1991 | 5,076,103 | | 1990 | 4,968,001 | | 1989 | 4,836,281 | | 1988 | 4,780,819 | | 1987 | 4,797,304 | | 1986 | 4,802,472 | | 1985 | 4,789,069 | | 1984 | 4,749,063 | | 1983 | 4,682,743 | | 1982 | 4,588,575 | | 1981 | 4,438,630 | | 1980 | 4,290,944 | | 1979 | 4,156,053 | | 1978 | 3,979,036 | | 1977 | 3,834,750 | | 1976 | 3,733,002 | | 1975 | 3,625,961 | | 1974 | 3,552,291 | | 1973 | 3,545,389 | | 1972 | 3,516,872 | | 1971 | 3,474,691 | | 1970 | 3,464,633 | | 1969 | 3,447,965 | | 1968 | 3,379,598 | | 1967 | 3,278,403 | | 1966 | 3,208,751 | | 1965 | 3,151,345 | | 1964 | 3,076,268 | | 1963 | 3,016,160 | | 1962 | 2,972,092 | | 1961 | 2,897,894 | | 1960 | 2,803,039 |
|