| Year | Value | | 2022 | 9,747,250 | | 2021 | 9,674,037 | | 2020 | 9,509,650 | | 2019 | 9,015,729 | | 2018 | 8,691,035 | | 2017 | 8,574,778 | | 2016 | 8,357,596 | | 2015 | 8,041,966 | | 2014 | 7,845,522 | | 2013 | 7,607,305 | | 2012 | 7,232,629 | | 2011 | 6,783,454 | | 2010 | 6,477,415 | | 2009 | 6,278,982 | | 2008 | 6,027,076 | | 2007 | 5,768,844 | | 2006 | 5,604,517 | | 2005 | 5,469,175 | | 2004 | 5,329,655 | | 2003 | 5,220,442 | | 2002 | 5,146,744 | | 2001 | 5,096,958 | | 2000 | 5,063,828 | | 1999 | 5,108,691 | | 1998 | 5,174,199 | | 1997 | 5,232,842 | | 1996 | 5,327,023 | | 1995 | 5,377,142 | | 1994 | 5,332,876 | | 1993 | 5,407,589 | | 1992 | 5,511,143 | | 1991 | 5,453,685 | | 1990 | 5,446,336 | | 1989 | 5,515,266 | | 1988 | 5,396,632 | | 1987 | 5,214,786 | | 1986 | 5,168,026 | | 1985 | 5,089,057 | | 1984 | 4,965,169 | | 1983 | 4,915,882 | | 1982 | 4,941,000 | | 1981 | 4,954,642 | | 1980 | 4,960,979 | | 1979 | 4,958,625 | | 1978 | 4,922,017 | | 1977 | 4,845,490 | | 1976 | 4,693,520 | | 1975 | 4,535,076 | | 1974 | 4,390,667 | | 1973 | 4,213,879 | | 1972 | 4,077,522 | | 1971 | 3,989,933 | | 1970 | 3,876,659 | | 1969 | 3,786,583 | | 1968 | 3,778,468 | | 1967 | 3,745,899 | | 1966 | 3,681,247 | | 1965 | 3,666,146 | | 1964 | 3,645,486 | | 1963 | 3,556,866 | | 1962 | 3,433,035 | | 1961 | 3,349,577 | | 1960 | 3,280,254 |
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