Year | Value | 2022 | 52,990,360 | 2021 | 51,784,216 | 2020 | 50,229,372 | 2019 | 48,166,105 | 2018 | 45,855,619 | 2017 | 43,278,589 | 2016 | 40,677,093 | 2015 | 38,071,988 | 2014 | 35,392,522 | 2013 | 33,093,242 | 2012 | 31,161,193 | 2011 | 29,811,480 | 2010 | 29,169,908 | 2009 | 28,988,871 | 2008 | 29,088,694 | 2007 | 29,333,011 | 2006 | 29,309,929 | 2005 | 29,001,978 | 2004 | 28,618,852 | 2003 | 28,141,906 | 2002 | 27,513,588 | 2001 | 26,811,305 | 2000 | 26,212,031 | 1999 | 25,708,410 | 1998 | 25,175,027 | 1997 | 24,616,183 | 1996 | 24,013,468 | 1995 | 23,305,457 | 1994 | 22,541,190 | 1993 | 21,660,536 | 1992 | 20,638,874 | 1991 | 19,706,803 | 1990 | 18,870,543 | 1989 | 18,010,852 | 1988 | 17,161,086 | 1987 | 16,432,460 | 1986 | 15,825,951 | 1985 | 15,339,435 | 1984 | 15,077,888 | 1983 | 15,013,596 | 1982 | 14,993,638 | 1981 | 14,924,308 | 1980 | 14,766,674 | 1979 | 14,456,292 | 1978 | 14,020,075 | 1977 | 13,593,536 | 1976 | 13,226,799 | 1975 | 12,872,935 | 1974 | 12,501,573 | 1973 | 12,166,215 | 1972 | 11,869,405 | 1971 | 11,542,760 | 1970 | 11,180,564 | 1969 | 10,777,492 | 1968 | 10,332,613 | 1967 | 9,917,931 | 1966 | 9,569,934 | 1965 | 9,290,577 | 1964 | 9,120,810 | 1963 | 9,026,288 | 1962 | 8,912,360 | 1961 | 8,821,826 | 1960 | 8,817,108 |
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