Year	current US$
1979	907626.6345942116
1980	1490474.173464322
1981	98826.15215780008
1982	1362258.2448068343
1983	518011.0178691279
1984	-87756.32525653369
1985	43299.26426169517
1986	175805.19447530506
1987	210057.55577028106
1988	390653.0781899949
1989	197691.43845825983
1990	195151.3476761768
1991	194741.0567117116
1992	183601.04814166363
2006	57832.50111259792
2007	-24266.320355593638
2008	502861.14992895356
2009	-68944.59397171556
2010	456263.7193290153
2011	29810.317670710487
2012	5140810.58106173
2013	2941951.6278045997
2014	1061780.499259485
2015	-1543547.0178575453
2016	-1118186.4000820688
2017	738681.0427680841
2018	4172482.016001052
2019	486.6156369068764
2020	-66341.61112391911
2021	-122969.53780881355