| Year | Value | | 2022 | 9,278,938 | | 2021 | 9,154,906 | | 2020 | 9,028,486 | | 2019 | 8,897,078 | | 2018 | 8,755,285 | | 2017 | 8,607,777 | | 2016 | 8,462,167 | | 2015 | 8,304,212 | | 2014 | 8,129,246 | | 2013 | 7,944,763 | | 2012 | 7,750,070 | | 2011 | 7,541,459 | | 2010 | 7,324,799 | | 2009 | 7,101,426 | | 2008 | 6,867,564 | | 2007 | 6,623,231 | | 2006 | 6,370,370 | | 2005 | 6,112,213 | | 2004 | 5,856,232 | | 2003 | 5,603,756 | | 2002 | 5,350,673 | | 2001 | 5,100,262 | | 2000 | 4,855,555 | | 1999 | 4,622,579 | | 1998 | 4,409,111 | | 1997 | 4,223,690 | | 1996 | 4,078,452 | | 1995 | 3,971,008 | | 1994 | 3,890,546 | | 1993 | 3,833,922 | | 1992 | 3,794,725 | | 1991 | 3,761,124 | | 1990 | 3,732,755 | | 1989 | 3,710,784 | | 1988 | 3,687,407 | | 1987 | 3,657,707 | | 1986 | 3,618,219 | | 1985 | 3,566,577 | | 1984 | 3,502,151 | | 1983 | 3,427,273 | | 1982 | 3,345,354 | | 1981 | 3,260,568 | | 1980 | 3,177,048 | | 1979 | 3,096,958 | | 1978 | 3,019,838 | | 1977 | 2,943,177 | | 1976 | 2,863,862 | | 1975 | 2,778,985 | | 1974 | 2,687,257 | | 1973 | 2,590,137 | | 1972 | 2,490,691 | | 1971 | 2,392,521 | | 1970 | 2,299,131 | | 1969 | 2,213,326 | | 1968 | 2,137,325 | | 1967 | 2,073,456 | | 1966 | 2,023,896 | | 1965 | 1,994,256 | | 1964 | 1,973,004 | | 1963 | 1,951,497 | | 1962 | 1,934,891 | | 1961 | 1,918,434 | | 1960 | 1,897,551 |
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