Year	current US$
1980	995769230.7692308
1981	221714285.71428573
1982	206266666.66666666
1983	34555555.55555556
1984	331666666.6666667
1985	-69842105.26315789
1986	-695823529.4117647
1987	-516230769.2307693
1988	-74529411.76470588
1989	-382111111.1111111
1990	-744545454.5454545
1991	467741935.483871
1992	-603092783.5051546
1993	-826266579.6912372
1994	-60608856.08856089
1995	1788301499.1588633
1996	1373755544.1876683
1997	1435862508.539556
1998	1027746628.8107305
1999	-623502748.0002177
2000	-703095924.9272939
2001	-1321717593.3809004
2002	-1308143333.4537008
2003	-2152555373.053185
2004	-2916749888.420419
2005	-4377275617.752756
2006	-5876220044.418304
2007	-8363361091.672498
2008	-10750907362.631691
2009	-4294536401.7140923
2010	-1616447502.2029417
2011	91404170.52167106
2012	-1779984891.2829273
2013	-312060161.607931
2014	-616816329.3030839
2015	446530519.6278648
2016	2649710226.9511576
2017	2542524114.8270087
2018	1670824225.5902421
2019	2205746093.526415
2020	1360230099.8656778
2021	1535871076.978896
2022	185370410.25088835
2023	3215605182.544367