| Year | Value | | 2022 | 4,615,615 | | 2021 | 4,540,880 | | 2020 | 4,458,245 | | 2019 | 4,377,216 | | 2018 | 4,292,929 | | 2017 | 4,192,227 | | 2016 | 4,081,084 | | 2015 | 3,968,397 | | 2014 | 3,847,919 | | 2013 | 3,720,661 | | 2012 | 3,596,079 | | 2011 | 3,487,709 | | 2010 | 3,401,294 | | 2009 | 3,332,066 | | 2008 | 3,281,132 | | 2007 | 3,234,555 | | 2006 | 3,183,937 | | 2005 | 3,130,366 | | 2004 | 3,067,064 | | 2003 | 2,995,690 | | 2002 | 2,912,604 | | 2001 | 2,814,887 | | 2000 | 2,708,835 | | 1999 | 2,590,826 | | 1998 | 2,468,237 | | 1997 | 2,370,347 | | 1996 | 2,300,950 | | 1995 | 2,250,442 | | 1994 | 2,218,714 | | 1993 | 2,197,719 | | 1992 | 2,165,381 | | 1991 | 2,114,017 | | 1990 | 2,054,979 | | 1989 | 1,998,074 | | 1988 | 1,946,928 | | 1987 | 1,899,963 | | 1986 | 1,854,058 | | 1985 | 1,807,127 | | 1984 | 1,759,168 | | 1983 | 1,710,641 | | 1982 | 1,662,442 | | 1981 | 1,618,797 | | 1980 | 1,582,794 | | 1979 | 1,552,547 | | 1978 | 1,523,657 | | 1977 | 1,494,258 | | 1976 | 1,469,252 | | 1975 | 1,448,126 | | 1974 | 1,423,075 | | 1973 | 1,395,472 | | 1972 | 1,369,544 | | 1971 | 1,370,305 | | 1970 | 1,370,022 | | 1969 | 1,341,518 | | 1968 | 1,310,781 | | 1967 | 1,279,219 | | 1966 | 1,248,863 | | 1965 | 1,220,140 | | 1964 | 1,192,503 | | 1963 | 1,165,742 | | 1962 | 1,139,768 | | 1961 | 1,114,765 | | 1960 | 1,090,977 |
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