Year	current US$
1995	-163971274.725275
1996	-287075153.858633
1997	-9956994.03249931
1998	-449791690.676003
1999	-50313886.179793
2000	396850499.329462
2001	646338221.947811
2002	626266208.481953
2003	1094056614.80501
2004	1464105018.72392
2005	3942935946.05458
2006	7763490087.75465
2007	12976359012.5859
2008	21696871616.3583
2009	15238984858.9201
2010	20801929405.1832
2011	27813649445.4856
2012	27582769765.7841
2013	28375475583.8113
2014	26239924531.5567
2015	11369705179.5823
2016	6052944557.87428
2017	9304948044.15524
2018	12140897411.7647
2019	10891147054.6719
2020	6484187764.70588
2021	13293492405.6513