Year | Value | 2022 | 16,857,086 | 2021 | 16,695,110 | 2020 | 16,499,432 | 2019 | 16,268,182 | 2018 | 15,961,942 | 2017 | 15,666,065 | 2016 | 15,428,091 | 2015 | 15,215,665 | 2014 | 15,041,702 | 2013 | 14,894,870 | 2012 | 14,765,435 | 2011 | 14,647,747 | 2010 | 14,545,483 | 2009 | 14,461,087 | 2008 | 14,388,026 | 2007 | 14,296,701 | 2006 | 14,180,761 | 2005 | 14,057,586 | 2004 | 13,925,077 | 2003 | 13,784,608 | 2002 | 13,635,757 | 2001 | 13,472,595 | 2000 | 13,290,367 | 1999 | 13,088,603 | 1998 | 12,871,958 | 1997 | 12,646,350 | 1996 | 12,418,047 | 1995 | 12,189,353 | 1994 | 11,956,534 | 1993 | 11,723,006 | 1992 | 11,492,270 | 1991 | 11,262,762 | 1990 | 11,028,476 | 1989 | 10,789,246 | 1988 | 10,552,381 | 1987 | 10,319,579 | 1986 | 10,091,736 | 1985 | 9,864,692 | 1984 | 9,638,776 | 1983 | 9,413,896 | 1982 | 9,190,956 | 1981 | 8,972,360 | 1980 | 8,754,121 | 1979 | 8,540,477 | 1978 | 8,334,638 | 1977 | 8,132,080 | 1976 | 7,938,665 | 1975 | 7,752,190 | 1974 | 7,565,452 | 1973 | 7,378,943 | 1972 | 7,189,645 | 1971 | 6,998,792 | 1970 | 6,821,666 | 1969 | 6,644,864 | 1968 | 6,458,456 | 1967 | 6,276,471 | 1966 | 6,098,458 | 1965 | 5,924,127 | 1964 | 5,753,445 | 1963 | 5,587,642 | 1962 | 5,426,462 | 1961 | 5,268,511 | 1960 | 5,114,541 |
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