Year	current US$
1979	300000.00074505823
1980	15679999.87304211
1981	26900000.14379623
1982	44080000.25153155
1983	56669999.754056334
1984	66250001.125037745
1985	114450000.37550929
1986	115739998.98135665
1987	152389997.93864787
1988	31129999.11606316
1989	35960000.20205978
1990	87720000.90777878
1991	32699999.70495697
1992	7459999.503567795
1993	31289999.9842048
1994	18580000.218004
1995	21319999.65943393
1996	44990000.63166017
1997	55649999.02620915
1998	8800000.675022539
1999	70359999.90254645
2000	37270000.09827318
2001	62279999.34181566
2002	36989999.70220027
2003	40829999.862238795
2004	29039999.902248397
2005	57849999.65690078
2006	78589999.02755022
2007	75120000.93236566
2008	96370001.32352121
2009	44729999.896138884
2010	82970000.85562474
2011	140669999.5920062
2012	115340000.29414894
2013	108589999.92907044
2014	122609998.73653057
2015	129370292.17183581
2016	143880641.40453944
2017	134547278.55324748
2018	132293154.65129924
2019	106553970.44122213
2020	48394052.91900044
2021	-40371001.40750407
2022	-58349799.148738354