| Year | Value | | 2022 | 7,075,746 | | 2021 | 6,940,769 | | 2020 | 6,816,135 | | 2019 | 6,696,833 | | 2018 | 6,580,773 | | 2017 | 6,476,136 | | 2016 | 6,393,324 | | 2015 | 6,328,401 | | 2014 | 6,277,240 | | 2013 | 6,232,798 | | 2012 | 6,178,736 | | 2011 | 6,102,616 | | 2010 | 6,001,907 | | 2009 | 5,876,900 | | 2008 | 5,731,343 | | 2007 | 5,573,030 | | 2006 | 5,408,297 | | 2005 | 5,241,618 | | 2004 | 5,076,218 | | 2003 | 4,913,159 | | 2002 | 4,754,199 | | 2001 | 4,601,088 | | 2000 | 4,453,564 | | 1999 | 4,311,681 | | 1998 | 4,161,324 | | 1997 | 3,993,045 | | 1996 | 3,814,273 | | 1995 | 3,640,008 | | 1994 | 3,479,544 | | 1993 | 3,344,384 | | 1992 | 3,244,010 | | 1991 | 3,169,215 | | 1990 | 3,101,666 | | 1989 | 3,029,533 | | 1988 | 2,954,549 | | 1987 | 2,873,717 | | 1986 | 2,787,018 | | 1985 | 2,696,038 | | 1984 | 2,604,222 | | 1983 | 2,519,322 | | 1982 | 2,445,936 | | 1981 | 2,383,156 | | 1980 | 2,331,256 | | 1979 | 2,287,893 | | 1978 | 2,247,307 | | 1977 | 2,206,327 | | 1976 | 2,163,221 | | 1975 | 2,118,026 | | 1974 | 2,070,987 | | 1973 | 2,020,519 | | 1972 | 1,965,676 | | 1971 | 1,907,674 | | 1970 | 1,847,363 | | 1969 | 1,785,063 | | 1968 | 1,723,319 | | 1967 | 1,665,858 | | 1966 | 1,615,446 | | 1965 | 1,572,629 | | 1964 | 1,535,887 | | 1963 | 1,502,986 | | 1962 | 1,471,986 | | 1961 | 1,441,594 | | 1960 | 1,410,160 |
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