Year	current US$
1980	-40804924.41608137
1981	-178023863.04200545
1982	-76396671.56058937
1983	-60962419.618099935
1984	-12562384.71009988
1985	-4334430.811214733
1986	28246941.82718874
1987	38268033.8109334
1988	56073799.27257879
1989	27370792.66759386
1990	-64352410.81822774
1991	-44186673.7871368
1992	-45908458.53368384
1993	-115645927.58346711
1994	-55323145.223256215
1995	-69969203.59545001
1996	85227677.61704554
1997	54444386.721388124
1998	41423039.967948735
1999	-7717205.051723043
2000	-85970990.66298667
2001	-133664060.00519194
2002	-44949471.85513741
2003	-194063830.5953049
2004	-452798615.118292
2005	-286272520.0852017
2006	-550196395.5637708
2007	-445444948.1463081
2008	-590073414.0678921
2009	-286956077.1079409
2010	-199686318.90702623
2011	-223549933.99907532
2012	-121683251.45693067
2013	-528000078.1980986
2014	-298408611.0382574
2015	-164614350.4812574
2016	-191292674.45013502
2017	-267166616.2685213
2018	-431881114.1239257
2019	-571099795.2687312
2020	-739531677.5828164
2021	-1171767280.8266845
2022	-1051463904.6755097
2023	-583066897.3204067