Year	current US$
1980	-28615608.593101997
1981	-34362743.636755206
1982	-41707561.05914815
1983	27330759.415671837
1984	2453829.4943932565
1985	-37565028.80904573
1986	-69833826.489082
1987	5701646.129016573
1988	38392335.16944157
1989	2183750.9001680347
1990	240620689.09114873
1991	48399150.404789016
1992	21778890.28595231
1993	-109927956.36864844
1994	58543206.344038725
1995	-13526178.735816779
1996	-12541294.042423632
1997	16467496.910781818
1998	77217957.68813613
1999	7696836.590455102
2000	20244248.12833978
2001	49225727.743440405
2002	-47779346.18865248
2003	13853453.696877452
2004	33394001.851171568
2005	78052213.87658404
2006	50497377.01526503
2007	205552781.86979118
2008	213674894.34352165
2009	-132436928.15288837
2010	-130658135.80710071
2011	-39892288.040109456
2012	127237763.9062649
2013	-205496070.5430471
2014	-45001631.02317677
2015	-48887887.14043503
2016	21897668.24098852
2017	-21208959.037955657
2018	-267117907.87657976
2019	-52898487.02970571
2020	27946986.463865284
2021	184358325.5835689
2022	410185067.0834572
2023	187723201.10127115