| Year | Value | | 2021 | 96,661,876.408 | | 2020 | 79,675,683.589 | | 2019 | 190,986,478.28032 | | 2018 | 189,594,450.62766 | | 2017 | 162,908,959.55031 | | 2016 | 142,492,664 | | 2015 | 120,221,878 | | 2014 | 102,251,106.64342 | | 2013 | 93,893,397.487732 | | 2012 | 89,645,445.178523 | | 2011 | 91,031,850.071816 | | 2010 | 78,888,194.886328 | | 2009 | 64,195,666 | | 2008 | 60,323,625 | | 2007 | 62,460,543 | | 2006 | 51,488,173 | | 2005 | 38,307,149 | | 2004 | 33,660,738 | | 2003 | 27,975,359 | | 2002 | 25,502,242 | | 2001 | 26,775,369 | | 2000 | 26,822,530 | | 1999 | 25,506,900 | | 1998 | 25,389,700 | | 1997 | 25,538,500 | | 1996 | 22,444,800 | | 1995 | 23,175,700 | | 1994 | 20,433,000 | | 1993 | 18,013,800 | | 1992 | 19,784,000 | | 1991 | 18,692,200 | | 1990 | 18,916,100 | | 1989 | 20,406,500 | | 1988 | 20,656,900 | | 1987 | 19,186,000 | | 1986 | 18,061,800 | | 1985 | 17,084,600 | | 1984 | 15,846,600 | | 1983 | 14,473,100 | | 1982 | 13,529,900 | | 1981 | 12,195,300 | | 1980 | 10,964,100 | | 1979 | 10,583,900 | | 1978 | 9,790,500 | | 1977 | 8,481,700 | | 1976 | 7,422,400 | | 1975 | 6,225,200 | | 1974 | 4,983,200 | | 1973 | 5,141,900 | | 1972 | 4,363,900 | | 1971 | 4,070,900 | | 1970 | 4,400,200 |
|