Year | Value | 2022 | 31,749,763 | 2021 | 30,960,655 | 2020 | 30,169,923 | 2019 | 29,376,265 | 2018 | 28,605,484 | 2017 | 27,844,960 | 2016 | 27,124,936 | 2015 | 26,400,640 | 2014 | 25,633,615 | 2013 | 24,693,559 | 2012 | 23,512,763 | 2011 | 22,427,635 | 2010 | 21,604,967 | 2009 | 20,893,380 | 2008 | 20,139,353 | 2007 | 19,739,613 | 2006 | 19,892,550 | 2005 | 19,734,937 | 2004 | 19,142,440 | 2003 | 18,584,912 | 2002 | 18,012,216 | 2001 | 17,429,292 | 2000 | 16,869,783 | 1999 | 16,303,387 | 1998 | 15,765,819 | 1997 | 15,275,363 | 1996 | 14,843,067 | 1995 | 14,408,625 | 1994 | 13,964,286 | 1993 | 13,343,444 | 1992 | 12,748,074 | 1991 | 12,407,159 | 1990 | 12,308,951 | 1989 | 12,190,452 | 1988 | 11,903,373 | 1987 | 11,621,435 | 1986 | 11,206,219 | 1985 | 10,833,454 | 1984 | 10,476,679 | 1983 | 10,058,234 | 1982 | 9,670,054 | 1981 | 9,310,135 | 1980 | 8,945,824 | 1979 | 8,582,403 | 1978 | 8,227,432 | 1977 | 7,862,216 | 1976 | 7,487,349 | 1975 | 7,130,780 | 1974 | 6,785,351 | 1973 | 6,448,592 | 1972 | 6,122,507 | 1971 | 5,810,041 | 1970 | 5,509,464 | 1969 | 5,220,640 | 1968 | 4,946,143 | 1967 | 4,684,839 | 1966 | 4,436,728 | 1965 | 4,189,113 | 1964 | 3,926,289 | 1963 | 3,676,992 | 1962 | 3,439,997 | 1961 | 3,226,080 | 1960 | 3,039,256 |
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