Year	current US$
1970	0
1971	0
1972	0
1973	0
1974	0
1975	0
1976	0
1977	0
1978	0
1979	0
1980	0
1981	0
1982	0
1983	0
1984	0
1985	0
1986	0
1987	0
1988	10072.2940146214
1989	7968.78992960602
1990	11992.3392824986
1991	0
1992	416261.50993203
1993	349113.041841056
1994	3937860.27261206
1995	10660542.1117787
1996	0
1997	4063527.60909624
1998	0
1999	0
2000	0
2001	0
2002	0
2003	1845626.64764744
2004	0
2005	0
2006	1635662.98121202
2007	0
2008	25443582.907034
2009	57124768.4057031
2010	24002108.0558091
2011	183104746.581144
2012	147702925.65854
2013	121061010.888686
2014	131699578.160793
2015	127094781.275309
2016	206041880.196334
2017	158641914.26306
2018	203959797.072591
2019	262803272.35799
2020	325771687.654204
2021	1282376910.48729