Year | Value | 2021 | 40,196,395.291 | 2020 | 31,772,879.385 | 2019 | 75,149,123.594196 | 2018 | 76,638,417.172721 | 2017 | 66,266,847.630311 | 2016 | 61,746,099 | 2015 | 59,104,417 | 2014 | 57,740,475.987387 | 2013 | 55,523,931.791229 | 2012 | 54,219,947.737728 | 2011 | 52,495,582.453233 | 2010 | 44,466,970.775583 | 2009 | 31,678,543 | 2008 | 31,956,149 | 2007 | 31,490,994 | 2006 | 30,339,043 | 2005 | 28,043,085 | 2004 | 25,905,542 | 2003 | 22,216,651 | 2002 | 21,700,384 | 2001 | 23,699,857 | 2000 | 23,531,632 | 1999 | 23,309,800 | 1998 | 22,920,500 | 1997 | 22,703,900 | 1996 | 21,868,300 | 1995 | 22,239,300 | 1994 | 22,889,800 | 1993 | 22,554,200 | 1992 | 23,608,900 | 1991 | 19,102,300 | 1990 | 20,029,500 | 1989 | 19,115,100 | 1988 | 19,470,000 | 1987 | 18,258,700 | 1986 | 18,335,600 | 1985 | 18,429,800 | 1984 | 17,902,100 | 1983 | 17,292,300 | 1982 | 16,788,100 | 1981 | 16,317,100 | 1980 | 15,021,000 | 1979 | 13,375,100 | 1978 | 12,210,500 | 1977 | 10,934,400 | 1976 | 10,440,700 | 1975 | 8,627,400 | 1974 | 7,434,000 | 1973 | 7,002,200 | 1972 | 5,692,700 | 1971 | 5,878,600 | 1970 | 5,689,700 |
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