| Year | Value | | 2022 | 4,770,701 | | 2021 | 4,812,100 | | 2020 | 4,851,974 | | 2019 | 4,889,165 | | 2018 | 4,924,975 | | 2017 | 4,959,642 | | 2016 | 4,993,082 | | 2015 | 5,025,496 | | 2014 | 5,056,010 | | 2013 | 5,083,401 | | 2012 | 5,107,137 | | 2011 | 5,127,267 | | 2010 | 5,166,626 | | 2009 | 5,203,167 | | 2008 | 5,213,626 | | 2007 | 5,221,587 | | 2006 | 5,225,816 | | 2005 | 5,226,768 | | 2004 | 5,226,430 | | 2003 | 5,230,508 | | 2002 | 5,289,173 | | 2001 | 5,341,024 | | 2000 | 5,383,985 | | 1999 | 5,336,468 | | 1998 | 5,288,834 | | 1997 | 5,240,477 | | 1996 | 5,190,756 | | 1995 | 5,141,574 | | 1994 | 5,091,515 | | 1993 | 5,040,049 | | 1992 | 4,986,400 | | 1991 | 4,971,606 | | 1990 | 4,950,919 | | 1989 | 4,924,962 | | 1988 | 4,895,408 | | 1987 | 4,863,234 | | 1986 | 4,828,817 | | 1985 | 4,792,764 | | 1984 | 4,755,371 | | 1983 | 4,716,622 | | 1982 | 4,667,175 | | 1981 | 4,575,440 | | 1980 | 4,486,792 | | 1979 | 4,400,737 | | 1978 | 4,316,550 | | 1977 | 4,234,625 | | 1976 | 4,155,365 | | 1975 | 4,078,945 | | 1974 | 4,005,556 | | 1973 | 3,935,276 | | 1972 | 3,866,818 | | 1971 | 3,802,557 | | 1970 | 3,755,790 | | 1969 | 3,709,030 | | 1968 | 3,662,394 | | 1967 | 3,615,811 | | 1966 | 3,569,375 | | 1965 | 3,522,918 | | 1964 | 3,475,920 | | 1963 | 3,431,287 | | 1962 | 3,386,803 | | 1961 | 3,339,938 | | 1960 | 3,292,834 |
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