Year | Value | 2022 | 25,640,048 | 2021 | 24,987,838 | 2020 | 24,424,471 | 2019 | 23,740,381 | 2018 | 23,046,647 | 2017 | 22,368,245 | 2016 | 21,664,937 | 2015 | 20,952,142 | 2014 | 20,289,767 | 2013 | 19,609,390 | 2012 | 18,953,956 | 2011 | 18,265,818 | 2010 | 17,522,786 | 2009 | 16,703,305 | 2008 | 15,903,904 | 2007 | 15,159,840 | 2006 | 14,424,633 | 2005 | 13,764,515 | 2004 | 13,190,988 | 2003 | 12,603,887 | 2002 | 12,048,060 | 2001 | 11,531,373 | 2000 | 11,007,050 | 1999 | 10,629,391 | 1998 | 10,482,880 | 1997 | 10,447,487 | 1996 | 10,397,646 | 1995 | 10,291,633 | 1994 | 10,077,001 | 1993 | 9,788,029 | 1992 | 9,469,267 | 1991 | 9,137,373 | 1990 | 8,820,841 | 1989 | 8,508,326 | 1988 | 8,198,647 | 1987 | 7,891,435 | 1986 | 7,611,801 | 1985 | 7,363,139 | 1984 | 7,116,359 | 1983 | 6,892,647 | 1982 | 6,647,534 | 1981 | 6,399,283 | 1980 | 6,193,035 | 1979 | 5,993,999 | 1978 | 5,801,756 | 1977 | 5,623,578 | 1976 | 5,473,847 | 1975 | 5,343,326 | 1974 | 5,218,157 | 1973 | 5,116,406 | 1972 | 5,024,140 | 1971 | 4,924,840 | 1970 | 4,821,986 | 1969 | 4,720,294 | 1968 | 4,615,470 | 1967 | 4,510,503 | 1966 | 4,407,937 | 1965 | 4,312,580 | 1964 | 4,202,358 | 1963 | 4,105,059 | 1962 | 4,032,519 | 1961 | 3,943,535 | 1960 | 3,849,428 |
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