| Year | Value | | 2022 | 9,280,104 | | 2021 | 9,190,703 | | 2020 | 9,108,648 | | 2019 | 9,015,406 | | 2018 | 8,896,291 | | 2017 | 8,764,881 | | 2016 | 8,618,398 | | 2015 | 8,481,489 | | 2014 | 8,362,604 | | 2013 | 8,250,182 | | 2012 | 8,150,488 | | 2011 | 8,059,895 | | 2010 | 7,976,659 | | 2009 | 7,894,625 | | 2008 | 7,813,274 | | 2007 | 7,738,188 | | 2006 | 7,666,670 | | 2005 | 7,613,645 | | 2004 | 7,577,769 | | 2003 | 7,542,470 | | 2002 | 7,508,835 | | 2001 | 7,478,923 | | 2000 | 7,454,878 | | 1999 | 7,440,437 | | 1998 | 7,432,163 | | 1997 | 7,425,561 | | 1996 | 7,418,835 | | 1995 | 7,399,093 | | 1994 | 7,346,937 | | 1993 | 7,281,393 | | 1992 | 7,225,787 | | 1991 | 7,170,001 | | 1990 | 7,112,392 | | 1989 | 7,057,653 | | 1988 | 7,010,722 | | 1987 | 6,978,575 | | 1986 | 6,955,328 | | 1985 | 6,939,171 | | 1984 | 6,927,719 | | 1983 | 6,921,426 | | 1982 | 6,918,294 | | 1981 | 6,914,338 | | 1980 | 6,904,971 | | 1979 | 6,885,080 | | 1978 | 6,864,113 | | 1977 | 6,838,299 | | 1976 | 6,808,217 | | 1975 | 6,777,603 | | 1974 | 6,733,350 | | 1973 | 6,688,293 | | 1972 | 6,651,027 | | 1971 | 6,605,244 | | 1970 | 6,517,403 | | 1969 | 6,397,326 | | 1968 | 6,291,760 | | 1967 | 6,194,186 | | 1966 | 6,083,367 | | 1965 | 5,959,398 | | 1964 | 5,834,351 | | 1963 | 5,720,204 | | 1962 | 5,616,067 | | 1961 | 5,511,783 | | 1960 | 5,425,627 |
|