Year	current US$
1979	0
1980	13109999.7311831
1981	7759999.968111521
1982	8220000.01743436
1983	23580000.0969321
1984	16680000.234395301
1985	30039999.673143
1986	36970000.058412604
1987	50889999.6131659
1988	5259999.79302287
1989	8830000.25898218
1990	28180000.23067
1991	2789999.81284142
1992	-6959999.80904162
1993	5769999.81887639
1994	6779999.83355403
1995	4140000.00059605
1996	6049999.963492161
1997	14819999.720901301
1998	-12769999.8468161
1999	16519999.941811
2000	16249999.973923
2001	28590000.551193997
2002	16970000.2465397
2003	8869999.36401844
2004	-2439999.95291233
2005	4399999.98174608
2006	17950000.2488494
2007	24629999.872297
2008	36950000.0849366
2009	9710000.20951033
2010	17660000.1677871
2011	21249999.612569798
2012	20640000.429004397
2013	20159999.6406585
2014	13739999.7524917
2015	19925082.5755298
2016	34212478.4477055
2017	28460884.287953403
2018	36507485.1438403
2019	30708835.9296322
2020	357715.550810099
2021	-45000.202953815504
2022	5287940.192967646