| Year | Value | | 2022 | 10,715,107 | | 2021 | 10,935,847 | | 2020 | 11,142,190 | | 2019 | 11,163,030 | | 2018 | 11,184,265 | | 2017 | 11,189,734 | | 2016 | 11,152,457 | | 2015 | 11,061,262 | | 2014 | 10,947,270 | | 2013 | 10,806,317 | | 2012 | 10,603,389 | | 2011 | 10,508,018 | | 2010 | 10,306,767 | | 2009 | 9,822,409 | | 2008 | 9,452,058 | | 2007 | 9,310,341 | | 2006 | 9,047,871 | | 2005 | 8,669,326 | | 2004 | 8,429,560 | | 2003 | 8,146,726 | | 2002 | 7,724,290 | | 2001 | 7,220,130 | | 2000 | 6,876,681 | | 1999 | 6,664,143 | | 1998 | 6,405,660 | | 1997 | 6,141,711 | | 1996 | 5,973,440 | | 1995 | 5,840,281 | | 1994 | 5,695,993 | | 1993 | 5,577,038 | | 1992 | 5,488,784 | | 1991 | 5,438,113 | | 1990 | 5,418,067 | | 1989 | 5,489,176 | | 1988 | 5,580,499 | | 1987 | 5,656,203 | | 1986 | 5,776,280 | | 1985 | 5,855,808 | | 1984 | 5,838,674 | | 1983 | 5,960,408 | | 1982 | 6,100,770 | | 1981 | 6,046,852 | | 1980 | 6,055,617 | | 1979 | 6,166,886 | | 1978 | 6,030,923 | | 1977 | 5,771,384 | | 1976 | 5,668,217 | | 1975 | 5,545,574 | | 1974 | 5,350,161 | | 1973 | 5,254,815 | | 1972 | 5,283,834 | | 1971 | 5,316,342 | | 1970 | 5,320,576 | | 1969 | 5,303,760 | | 1968 | 5,274,831 | | 1967 | 5,215,721 | | 1966 | 5,077,693 | | 1965 | 4,944,165 | | 1964 | 4,836,839 | | 1963 | 4,672,679 | | 1962 | 4,544,874 | | 1961 | 4,461,554 | | 1960 | 4,331,325 |
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