| Year | Value | | 2022 | 11,601,171 | | 2021 | 11,289,071 | | 2020 | 10,998,640 | | 2019 | 10,676,693 | | 2018 | 10,330,256 | | 2017 | 9,988,394 | | 2016 | 9,657,470 | | 2015 | 9,336,968 | | 2014 | 9,019,528 | | 2013 | 8,690,906 | | 2012 | 8,353,703 | | 2011 | 8,017,375 | | 2010 | 7,693,187 | | 2009 | 7,397,377 | | 2008 | 7,127,098 | | 2007 | 6,895,280 | | 2006 | 6,693,347 | | 2005 | 6,509,579 | | 2004 | 6,335,482 | | 2003 | 6,168,397 | | 2002 | 6,003,065 | | 2001 | 5,837,978 | | 2000 | 5,669,852 | | 1999 | 5,498,908 | | 1998 | 5,334,648 | | 1997 | 5,183,939 | | 1996 | 5,045,354 | | 1995 | 4,919,889 | | 1994 | 4,805,670 | | 1993 | 4,697,254 | | 1992 | 4,592,063 | | 1991 | 4,486,982 | | 1990 | 4,381,477 | | 1989 | 4,274,993 | | 1988 | 4,164,774 | | 1987 | 4,050,718 | | 1986 | 3,934,585 | | 1985 | 3,817,578 | | 1984 | 3,700,303 | | 1983 | 3,583,297 | | 1982 | 3,471,188 | | 1981 | 3,370,449 | | 1980 | 3,282,354 | | 1979 | 3,204,030 | | 1978 | 3,136,211 | | 1977 | 3,077,985 | | 1976 | 3,022,488 | | 1975 | 2,963,836 | | 1974 | 2,900,308 | | 1973 | 2,831,062 | | 1972 | 2,756,345 | | 1971 | 2,679,207 | | 1970 | 2,605,699 | | 1969 | 2,537,027 | | 1968 | 2,471,490 | | 1967 | 2,409,269 | | 1966 | 2,347,650 | | 1965 | 2,284,674 | | 1964 | 2,218,604 | | 1963 | 2,148,688 | | 1962 | 2,076,785 | | 1961 | 2,003,974 | | 1960 | 1,930,265 |
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