Year | Value | 2022 | 37,919,842 | 2021 | 37,349,283 | 2020 | 36,759,934 | 2019 | 36,147,331 | 2018 | 35,527,626 | 2017 | 34,881,915 | 2016 | 34,207,697 | 2015 | 33,526,210 | 2014 | 32,841,765 | 2013 | 32,140,444 | 2012 | 31,428,409 | 2011 | 30,713,268 | 2010 | 29,940,706 | 2009 | 28,849,963 | 2008 | 27,767,512 | 2007 | 26,697,288 | 2006 | 25,647,750 | 2005 | 24,624,429 | 2004 | 23,622,396 | 2003 | 22,633,716 | 2002 | 21,664,845 | 2001 | 20,716,767 | 2000 | 19,794,084 | 1999 | 19,337,865 | 1998 | 19,014,440 | 1997 | 18,676,085 | 1996 | 18,333,677 | 1995 | 17,991,463 | 1994 | 17,644,544 | 1993 | 17,294,692 | 1992 | 16,946,761 | 1991 | 16,601,633 | 1990 | 16,250,407 | 1989 | 15,844,682 | 1988 | 15,434,167 | 1987 | 15,023,740 | 1986 | 14,617,853 | 1985 | 14,214,648 | 1984 | 13,814,893 | 1983 | 13,417,988 | 1982 | 13,026,009 | 1981 | 12,639,265 | 1980 | 12,253,601 | 1979 | 11,745,943 | 1978 | 11,217,147 | 1977 | 10,702,382 | 1976 | 10,204,580 | 1975 | 9,719,035 | 1974 | 9,242,659 | 1973 | 8,777,148 | 1972 | 8,325,835 | 1971 | 7,892,371 | 1970 | 7,476,534 | 1969 | 7,189,898 | 1968 | 6,949,440 | 1967 | 6,713,675 | 1966 | 6,482,605 | 1965 | 6,256,432 | 1964 | 6,035,730 | 1963 | 5,822,825 | 1962 | 5,617,368 | 1961 | 5,419,987 | 1960 | 5,232,080 |
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