Year | Value | 2021 | 31,483,072.692 | 2020 | 24,494,981.602 | 2019 | 66,236,333.920235 | 2018 | 64,951,730.360006 | 2017 | 54,260,831.08 | 2016 | 49,683,303 | 2015 | 47,850,992 | 2014 | 44,380,996.115098 | 2013 | 43,790,341.818 | 2012 | 45,408,840.802368 | 2011 | 42,648,276.401034 | 2010 | 38,191,509.137902 | 2009 | 27,748,907 | 2008 | 28,096,606 | 2007 | 27,232,504 | 2006 | 25,775,571 | 2005 | 23,620,094 | 2004 | 20,167,567 | 2003 | 17,883,529 | 2002 | 16,535,011 | 2001 | 17,173,516 | 2000 | 17,912,857 | 1999 | 17,122,000 | 1998 | 16,242,300 | 1997 | 16,477,400 | 1996 | 16,034,300 | 1995 | 15,368,600 | 1994 | 14,942,600 | 1993 | 13,923,000 | 1992 | 13,512,500 | 1991 | 14,208,800 | 1990 | 14,808,400 | 1989 | 14,713,200 | 1988 | 14,862,300 | 1987 | 14,322,400 | 1986 | 14,090,900 | 1985 | 15,179,600 | 1984 | 14,786,200 | 1983 | 14,397,500 | 1982 | 14,279,000 | 1981 | 14,210,700 | 1980 | 13,019,500 | 1979 | 11,291,300 | 1978 | 9,739,500 | 1977 | 8,761,000 | 1976 | 8,580,400 | 1975 | 7,320,600 | 1974 | 6,811,800 | 1973 | 6,261,300 | 1972 | 5,360,200 | 1971 | 5,013,400 | 1970 | 4,585,300 |
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