Year	current US$
1982	-44112313.53602416
1983	-30934037.22266208
1984	-10160448.617495226
1985	-93443626.03815983
1986	-3547169.6517424234
1987	33958292.38105752
1988	29842067.36800891
1989	4777217.340614209
1990	34710342.987932816
1991	7242317.361652762
1992	13121364.864838788
1993	30426398.107400008
1994	20133993.209559727
1995	16722448.134183373
1996	25246598.971903637
1997	-14786795.90813954
2001	-21746636.10467483
2002	55718753.446766615
2003	104831770.67924462
2004	78759669.43890484
2005	39796456.89485905
2006	-1331061.4307833842
2007	67084326.789360374
2008	42643351.8169138
2009	60354853.94123799
2010	69575637.03779462
2011	110615650.88887261
2012	54290869.230374135
2013	89885597.55025801
2014	199664955.22766608
2015	193487246.35724777
2016	203031923.0053945
2017	285274958.0972298
2018	259262612.7968738
2019	344080441.42671984
2020	489543504.571146
2021	403883698.5798183
2022	387770872.25832427