Year | Value | 2022 | 80,762,595 | 2021 | 77,974,126 | 2020 | 72,928,120 | 2019 | 67,934,483 | 2018 | 62,987,075 | 2017 | 59,907,551 | 2016 | 60,165,656 | 2015 | 61,907,155 | 2014 | 63,491,919 | 2013 | 63,918,619 | 2012 | 62,927,009 | 2011 | 61,419,377 | 2010 | 59,631,564 | 2009 | 57,356,163 | 2008 | 54,803,028 | 2007 | 51,875,550 | 2006 | 48,875,916 | 2005 | 45,810,637 | 2004 | 42,616,188 | 2003 | 39,874,567 | 2002 | 37,627,861 | 2001 | 36,181,980 | 2000 | 35,642,701 | 1999 | 35,658,426 | 1998 | 35,982,003 | 1997 | 36,422,554 | 1996 | 36,475,921 | 1995 | 36,159,179 | 1994 | 35,711,935 | 1993 | 35,100,569 | 1992 | 34,313,598 | 1991 | 33,470,265 | 1990 | 32,835,477 | 1989 | 32,401,000 | 1988 | 31,952,921 | 1987 | 31,452,976 | 1986 | 30,854,876 | 1985 | 30,074,405 | 1984 | 29,190,544 | 1983 | 28,146,351 | 1982 | 26,930,147 | 1981 | 25,827,990 | 1980 | 24,826,179 | 1979 | 23,778,314 | 1978 | 22,783,109 | 1977 | 21,942,597 | 1976 | 21,238,255 | 1975 | 20,702,562 | 1974 | 20,478,834 | 1973 | 20,490,485 | 1972 | 20,518,847 | 1971 | 20,464,371 | 1970 | 20,283,385 | 1969 | 19,949,318 | 1968 | 19,491,033 | 1967 | 19,052,969 | 1966 | 18,707,487 | 1965 | 18,382,299 | 1964 | 18,064,571 | 1963 | 17,838,760 | 1962 | 17,631,775 | 1961 | 17,416,869 | 1960 | 17,291,611 |
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