| Year | Value | | 2021 | 116,029,651.342 | | 2020 | 92,258,911.785 | | 2019 | 276,426,540.53805 | | 2018 | 264,706,357.92116 | | 2017 | 257,942,310.79 | | 2016 | 239,193,056 | | 2015 | 217,000,211 | | 2014 | 204,902,736.90704 | | 2013 | 188,897,689.14599 | | 2012 | 175,337,423.62552 | | 2011 | 160,271,708.77236 | | 2010 | 151,073,013.62007 | | 2009 | 114,274,202 | | 2008 | 71,070,884 | | 2007 | 71,222,974 | | 2006 | 66,638,675 | | 2005 | 61,431,744 | | 2004 | 78,560,904 | | 2003 | 73,216,604 | | 2002 | 64,355,768 | | 2001 | 67,991,058 | | 2000 | 59,654,534 | | 1999 | 56,424,000 | | 1998 | 53,713,700 | | 1997 | 53,725,800 | | 1996 | 49,613,000 | | 1995 | 45,976,000 | | 1994 | 45,080,700 | | 1993 | 42,087,100 | | 1992 | 41,137,700 | | 1991 | 36,420,700 | | 1990 | 38,928,000 | | 1989 | 38,333,400 | | 1988 | 36,641,600 | | 1987 | 35,611,400 | | 1986 | 34,087,200 | | 1985 | 34,822,500 | | 1984 | 35,296,900 | | 1983 | 33,496,000 | | 1982 | 30,856,600 | | 1981 | 28,680,800 | | 1980 | 27,858,700 | | 1979 | 25,387,900 | | 1978 | 23,545,300 | | 1977 | 20,259,300 | | 1976 | 16,872,300 | | 1975 | 13,016,800 | | 1974 | 10,597,800 | | 1973 | 8,687,900 | | 1972 | 7,528,900 | | 1971 | 6,428,900 | | 1970 | 5,302,800 |
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