Year	current US$
1980	0
1981	0
1982	0
1983	0
1984	0
1985	0
1986	0
1987	0
1988	0
1989	17870000.9137392
1990	24960000.7627159
1991	4339999.94024634
1992	70000.0002980232
1993	529999.9974668031
1994	3289999.97116625
1995	13190000.3645569
1996	23999999.281019002
1997	8540000.25987625
1998	6859999.96028841
1999	5140000.108629471
2000	-179999.951273203
2001	10770000.083372
2002	19789999.5110929
2003	-9949999.35477972
2004	26859999.3065
2005	38679999.6420741
2006	37310000.538826
2007	89359999.3735552
2008	127970001.04188901
2009	212390004.11331698
2010	108810002.550483
2011	74809998.6109883
2012	38490000.3448129
2013	23999999.5250255
2014	11319999.9853969
2015	1750000.06891787
2016	3760000.01654029
2017	6990000.19952655
2018	8939999.93801117
2019	7929999.9549984895
2020	6029999.79257584
2021	16859999.8485297
2022	30719999.678432982