Year | Value | 2021 | 32,000,528 | 2020 | 24,956,343 | 2019 | 71,289,277 | 2018 | 70,188,028 | 2017 | 68,316,473 | 2016 | 65,362,743 | 2015 | 65,039,503 | 2014 | 63,434,263 | 2013 | 63,925,151 | 2012 | 64,683,769.024321 | 2011 | 64,185,339.34113 | 2010 | 60,864,422.113513 | 2009 | 58,318,312 | 2008 | 61,214,656 | 2007 | 61,551,258 | 2006 | 59,537,872 | 2005 | 52,477,178 | 2004 | 48,543,473 | 2003 | 47,258,820 | 2002 | 49,305,864 | 2001 | 50,476,541 | 2000 | 52,581,312 | 1999 | 49,536,300 | 1998 | 42,232,400 | 1997 | 43,400,700 | 1996 | 41,252,600 | 1995 | 36,020,400 | 1994 | 38,170,400 | 1993 | 35,625,600 | 1992 | 33,963,900 | 1991 | 33,127,800 | 1990 | 35,963,900 | 1989 | 33,975,500 | 1988 | 30,667,300 | 1987 | 27,950,200 | 1986 | 25,211,400 | 1985 | 24,491,900 | 1984 | 23,694,300 | 1983 | 23,278,100 | 1982 | 22,372,400 | 1981 | 21,591,200 | 1980 | 19,521,000 | 1979 | 17,967,000 | 1978 | 16,821,200 | 1977 | 15,431,300 | 1976 | 14,301,900 | 1975 | 13,112,800 | 1974 | 12,159,300 | 1973 | 11,957,500 | 1972 | 11,285,100 | 1971 | 9,569,200 | 1970 | 9,108,000 |
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