| Year | Value | | 2022 | 7,048,625 | | 2021 | 6,984,064 | | 2020 | 6,899,076 | | 2019 | 6,808,064 | | 2018 | 6,730,054 | | 2017 | 6,663,791 | | 2016 | 6,587,440 | | 2015 | 6,492,467 | | 2014 | 6,385,631 | | 2013 | 6,263,886 | | 2012 | 6,120,992 | | 2011 | 5,972,871 | | 2010 | 5,837,424 | | 2009 | 5,717,385 | | 2008 | 5,628,067 | | 2007 | 5,553,370 | | 2006 | 5,465,692 | | 2005 | 5,352,424 | | 2004 | 5,207,311 | | 2003 | 5,040,517 | | 2002 | 4,851,691 | | 2001 | 4,648,429 | | 2000 | 4,445,646 | | 1999 | 4,255,721 | | 1998 | 4,090,493 | | 1997 | 3,955,118 | | 1996 | 3,856,855 | | 1995 | 3,791,731 | | 1994 | 3,737,967 | | 1993 | 3,683,137 | | 1992 | 3,625,337 | | 1991 | 3,562,352 | | 1990 | 3,491,527 | | 1989 | 3,410,718 | | 1988 | 3,318,061 | | 1987 | 3,209,720 | | 1986 | 3,087,277 | | 1985 | 2,950,962 | | 1984 | 2,796,997 | | 1983 | 2,639,750 | | 1982 | 2,506,602 | | 1981 | 2,400,797 | | 1980 | 2,316,429 | | 1979 | 2,260,116 | | 1978 | 2,221,450 | | 1977 | 2,175,383 | | 1976 | 2,122,714 | | 1975 | 2,072,778 | | 1974 | 2,034,175 | | 1973 | 2,006,439 | | 1972 | 1,980,517 | | 1971 | 1,960,669 | | 1970 | 1,938,831 | | 1969 | 1,904,921 | | 1968 | 1,861,863 | | 1967 | 1,814,711 | | 1966 | 1,769,832 | | 1965 | 1,728,350 | | 1964 | 1,688,788 | | 1963 | 1,651,111 | | 1962 | 1,614,335 | | 1961 | 1,578,165 | | 1960 | 1,543,327 |
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