| Year | Value | | 2022 | 4,103,703 | | 2021 | 3,947,615 | | 2020 | 3,795,374 | | 2019 | 3,647,266 | | 2018 | 3,511,841 | | 2017 | 3,388,282 | | 2016 | 3,275,428 | | 2015 | 3,176,560 | | 2014 | 3,089,014 | | 2013 | 3,007,291 | | 2012 | 2,929,844 | | 2011 | 2,854,336 | | 2010 | 2,779,359 | | 2009 | 2,705,693 | | 2008 | 2,633,958 | | 2007 | 2,564,273 | | 2006 | 2,497,318 | | 2005 | 2,434,066 | | 2004 | 2,373,027 | | 2003 | 2,313,002 | | 2002 | 2,253,407 | | 2001 | 2,194,558 | | 2000 | 2,137,231 | | 1999 | 2,074,746 | | 1998 | 2,014,102 | | 1997 | 1,972,936 | | 1996 | 1,947,914 | | 1995 | 1,929,625 | | 1994 | 1,920,979 | | 1993 | 1,912,568 | | 1992 | 1,885,994 | | 1991 | 1,845,353 | | 1990 | 1,799,261 | | 1989 | 1,751,622 | | 1988 | 1,706,958 | | 1987 | 1,665,823 | | 1986 | 1,626,831 | | 1985 | 1,587,887 | | 1984 | 1,547,595 | | 1983 | 1,511,665 | | 1982 | 1,475,901 | | 1981 | 1,435,914 | | 1980 | 1,397,028 | | 1979 | 1,359,346 | | 1978 | 1,323,457 | | 1977 | 1,289,004 | | 1976 | 1,256,605 | | 1975 | 1,226,614 | | 1974 | 1,198,522 | | 1973 | 1,172,308 | | 1972 | 1,147,461 | | 1971 | 1,123,539 | | 1970 | 1,099,872 | | 1969 | 1,076,940 | | 1968 | 1,055,128 | | 1967 | 1,033,686 | | 1966 | 1,010,991 | | 1965 | 986,269 | | 1964 | 960,892 | | 1963 | 934,904 | | 1962 | 908,769 | | 1961 | 884,091 | | 1960 | 861,795 |
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