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	460000.00089407
1988	620000.010356307
1989	759999.984875321
1990	409999.998286366
1991	2030000.0160932501
1992	4280000.05148351
1993	6449999.90612268
1994	8350000.03129244
1995	5030000.027269131
1996	4750000.04842877
1997	4109999.9248981504
1998	35139999.2164224
1999	29459999.4663149
2000	19670000.217855003
2001	18390000.205486998
2002	20970000.5687773
2003	52300000.1143664
2004	54200001.0274351
2005	83749999.8807907
2006	54210000.3026426
2007	58429998.0923533
2008	42699999.4814396
2009	74900000.06370251
2010	233659999.739379
2011	186529996.06728598
2012	205690000.608563
2013	266090001.687407
2014	206249996.379018
2015	158559996.679425
2016	129350000.31441501
2017	98459999.3377924
2018	140239998.102188
2019	276019994.63141
2020	162009996.235371
2021	305340000.18984103
2022	188589999.75025642