Year	current US$
1990	-63717546.2860041
1991	-412092609.889205
1992	-273099627.41391
1993	-71892569.013533
1994	-195809376.449289
1995	112694067.5862
1996	186334765.084345
1997	-130750190.700955
1998	191838027.387283
1999	167918441.628844
2000	555365733.518059
2001	758582815.600288
2002	682852600.585999
2003	941729753.024486
2004	1429926357.73511
2005	1678661787.49814
2006	1789025406.07029
2007	1375207635.48695
2008	882296446.06048
2009	753107482.783825
2010	1010384422.93528
2011	885420044.92224
2012	622613969.902183
2013	386492219.540484
2014	89520062.6432005
2015	11807218.1658885
2016	180718043.84645
2017	24981744.5371354
2018	24005657.610767
2019	-242669975.621459
2020	-387098653.646571
2021	553167293.018745