| Year | Value | | 2022 | 9,561,253 | | 2021 | 9,243,405 | | 2020 | 8,951,347 | | 2019 | 8,687,040 | | 2018 | 8,454,525 | | 2017 | 8,228,401 | | 2016 | 7,999,144 | | 2015 | 7,781,396 | | 2014 | 7,575,342 | | 2013 | 7,374,262 | | 2012 | 7,183,728 | | 2011 | 7,013,481 | | 2010 | 6,867,405 | | 2009 | 6,745,736 | | 2008 | 6,648,430 | | 2007 | 6,561,403 | | 2006 | 6,467,959 | | 2005 | 6,363,857 | | 2004 | 6,244,687 | | 2003 | 6,109,744 | | 2002 | 5,960,835 | | 2001 | 5,798,883 | | 2000 | 5,625,975 | | 1999 | 5,442,648 | | 1998 | 5,246,912 | | 1997 | 5,047,600 | | 1996 | 4,855,031 | | 1995 | 4,667,421 | | 1994 | 4,485,022 | | 1993 | 4,317,219 | | 1992 | 4,166,323 | | 1991 | 4,030,862 | | 1990 | 3,908,943 | | 1989 | 3,798,196 | | 1988 | 3,698,008 | | 1987 | 3,606,312 | | 1986 | 3,520,497 | | 1985 | 3,436,074 | | 1984 | 3,349,828 | | 1983 | 3,275,618 | | 1982 | 3,201,663 | | 1981 | 3,115,278 | | 1980 | 3,026,317 | | 1979 | 2,937,315 | | 1978 | 2,853,791 | | 1977 | 2,771,885 | | 1976 | 2,694,619 | | 1975 | 2,623,364 | | 1974 | 2,540,688 | | 1973 | 2,461,038 | | 1972 | 2,407,568 | | 1971 | 2,370,031 | | 1970 | 2,338,184 | | 1969 | 2,324,156 | | 1968 | 2,314,986 | | 1967 | 2,284,183 | | 1966 | 2,241,064 | | 1965 | 2,192,686 | | 1964 | 2,143,608 | | 1963 | 2,097,656 | | 1962 | 2,054,620 | | 1961 | 2,012,669 | | 1960 | 1,970,829 |
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