| Year | Value | | 2022 | 5,857,505 | | 2021 | 5,440,730 | | 2020 | 5,166,253 | | 2019 | 4,994,841 | | 2018 | 4,809,893 | | 2017 | 4,613,896 | | 2016 | 4,485,106 | | 2015 | 4,382,380 | | 2014 | 4,279,920 | | 2013 | 4,203,703 | | 2012 | 4,148,211 | | 2011 | 4,102,178 | | 2010 | 4,064,584 | | 2009 | 4,084,239 | | 2008 | 4,110,570 | | 2007 | 4,126,309 | | 2006 | 4,183,327 | | 2005 | 4,218,551 | | 2004 | 4,185,154 | | 2003 | 4,244,541 | | 2002 | 4,329,890 | | 2001 | 4,279,633 | | 2000 | 4,264,887 | | 1999 | 4,312,902 | | 1998 | 4,211,876 | | 1997 | 4,052,128 | | 1996 | 3,992,117 | | 1995 | 3,913,305 | | 1994 | 3,802,179 | | 1993 | 3,753,948 | | 1992 | 3,768,686 | | 1991 | 3,763,665 | | 1990 | 3,736,854 | | 1989 | 3,699,688 | | 1988 | 3,650,888 | | 1987 | 3,580,272 | | 1986 | 3,462,334 | | 1985 | 3,353,895 | | 1984 | 3,274,537 | | 1983 | 3,172,039 | | 1982 | 3,092,133 | | 1981 | 3,036,969 | | 1980 | 2,951,530 | | 1979 | 2,873,318 | | 1978 | 2,833,550 | | 1977 | 2,769,452 | | 1976 | 2,692,688 | | 1975 | 2,647,582 | | 1974 | 2,589,889 | | 1973 | 2,504,060 | | 1972 | 2,408,164 | | 1971 | 2,331,229 | | 1970 | 2,263,624 | | 1969 | 2,206,706 | | 1968 | 2,173,203 | | 1967 | 2,146,370 | | 1966 | 2,093,375 | | 1965 | 2,024,616 | | 1964 | 1,961,767 | | 1963 | 1,901,340 | | 1962 | 1,843,506 | | 1961 | 1,783,765 | | 1960 | 1,718,929 |
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