| Year | Value | | 2022 | 4,909,540 | | 2021 | 5,021,850 | | 2020 | 5,130,814 | | 2019 | 5,234,315 | | 2018 | 5,340,893 | | 2017 | 5,431,847 | | 2016 | 5,502,230 | | 2015 | 5,563,028 | | 2014 | 5,614,204 | | 2013 | 5,650,824 | | 2012 | 5,671,632 | | 2011 | 5,680,614 | | 2010 | 5,690,165 | | 2009 | 5,708,024 | | 2008 | 5,731,429 | | 2007 | 5,757,359 | | 2006 | 5,783,896 | | 2005 | 5,807,906 | | 2004 | 5,815,964 | | 2003 | 5,803,121 | | 2002 | 5,777,437 | | 2001 | 5,748,418 | | 2000 | 5,729,954 | | 1999 | 5,741,141 | | 1998 | 5,769,299 | | 1997 | 5,793,994 | | 1996 | 5,814,118 | | 1995 | 5,818,447 | | 1994 | 5,799,108 | | 1993 | 5,764,940 | | 1992 | 5,725,128 | | 1991 | 5,679,186 | | 1990 | 5,629,714 | | 1989 | 5,595,797 | | 1988 | 5,578,200 | | 1987 | 5,571,234 | | 1986 | 5,582,160 | | 1985 | 5,594,610 | | 1984 | 5,599,625 | | 1983 | 5,606,464 | | 1982 | 5,617,894 | | 1981 | 5,628,987 | | 1980 | 5,629,301 | | 1979 | 5,605,808 | | 1978 | 5,552,124 | | 1977 | 5,475,721 | | 1976 | 5,391,541 | | 1975 | 5,295,866 | | 1974 | 5,193,066 | | 1973 | 5,096,675 | | 1972 | 5,004,845 | | 1971 | 4,913,584 | | 1970 | 4,805,671 | | 1969 | 4,678,400 | | 1968 | 4,545,414 | | 1967 | 4,408,466 | | 1966 | 4,268,060 | | 1965 | 4,125,920 | | 1964 | 3,985,362 | | 1963 | 3,849,408 | | 1962 | 3,720,316 | | 1961 | 3,598,473 | | 1960 | 3,483,091 |
|