Year	current US$
1960	0
1961	0
1962	0
1963	0
1964	0
1965	0
1966	0
1967	0
1968	0
1969	0
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	489999.998360872
1988	640000.009909272
1989	419999.999925494
1990	999999.979510903
1991	6840000.02220273
1992	11500000.173226
1993	11389999.9614805
1994	9580000.12300909
1995	20090000.1861155
1996	65750000.7059425
1997	45960000.5205721
1998	46899999.7898936
1999	41780000.114813395
2000	29339999.6198714
2001	46770000.3199279
2002	61699999.9657273
2003	101939999.37363
2004	142720001.59882
2005	212489992.04300302
2006	138839999.610558
2007	143459999.931976
2008	116600000.38892
2009	129509999.759495
2010	142679999.830201
2011	128150001.138449
2012	137799998.858944
2013	128680001.36502102
2014	138920002.290979
2015	127100000.05550699
2016	162789999.82960498
2017	179410001.477227
2018	230269997.660071
2019	201040000.477806
2020	222190004.106611
2021	371099997.883663
2022	348739997.05538166