| Year | Value | | 2022 | 6,956,290 | | 2021 | 6,823,890 | | 2020 | 6,681,795 | | 2019 | 6,535,948 | | 2018 | 6,391,416 | | 2017 | 6,239,777 | | 2016 | 6,082,369 | | 2015 | 5,924,301 | | 2014 | 5,762,169 | | 2013 | 5,597,449 | | 2012 | 5,427,818 | | 2011 | 5,259,525 | | 2010 | 5,098,002 | | 2009 | 4,935,718 | | 2008 | 4,779,180 | | 2007 | 4,632,275 | | 2006 | 4,476,970 | | 2005 | 4,308,905 | | 2004 | 4,133,534 | | 2003 | 3,942,267 | | 2002 | 3,748,512 | | 2001 | 3,578,415 | | 2000 | 3,443,490 | | 1999 | 3,332,830 | | 1998 | 3,237,907 | | 1997 | 3,148,505 | | 1996 | 3,045,660 | | 1995 | 2,924,833 | | 1994 | 2,802,562 | | 1993 | 2,691,701 | | 1992 | 2,591,364 | | 1991 | 2,497,351 | | 1990 | 2,416,191 | | 1989 | 2,352,572 | | 1988 | 2,292,830 | | 1987 | 2,231,233 | | 1986 | 2,167,662 | | 1985 | 2,101,951 | | 1984 | 2,032,770 | | 1983 | 1,963,971 | | 1982 | 1,896,816 | | 1981 | 1,816,713 | | 1980 | 1,763,635 | | 1979 | 1,744,003 | | 1978 | 1,703,438 | | 1977 | 1,650,940 | | 1976 | 1,593,954 | | 1975 | 1,534,249 | | 1974 | 1,483,301 | | 1973 | 1,442,244 | | 1972 | 1,414,992 | | 1971 | 1,395,537 | | 1970 | 1,374,304 | | 1969 | 1,351,119 | | 1968 | 1,329,397 | | 1967 | 1,313,763 | | 1966 | 1,303,664 | | 1965 | 1,292,578 | | 1964 | 1,277,409 | | 1963 | 1,257,032 | | 1962 | 1,227,673 | | 1961 | 1,190,882 | | 1960 | 1,154,168 |
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