Year	current US$
1974	0
1975	0
1976	0
1977	0
1978	0
1979	0
1980	0
1981	9999.99977648258
1982	19999.9995529652
1983	29999.999329447703
1984	0
1985	0
1986	0
1987	29999.999329447703
1988	9999.99977648258
1989	9999.99977648258
1990	1259999.98487532
1991	19999.9995529652
1992	89999.9979883432
1993	189999.999478459
1994	469999.993219972
1995	539999.99165535
1996	979999.994859099
1997	569999.987259507
1998	19999.9995529652
1999	79999.9982118607
2000	559999.9874830251
2001	199999.999254942
2002	529999.990016222
2003	660000.000149012
2004	1939999.9473244
2005	170000.00178813902
2006	229999.99858438998
2007	430000.00715255697
2008	239999.994635582
2009	170000.00178813902
2010	709999.989718199
2011	29999.999329447703
2012	0
2013	0
2014	0
2015	0
2016	0
2017	19999.9995529652
2018	0
2019	0
2020	340000.00357627904
2021	0