Year	current US$
2002	-143328259.399044
2003	5767075254.91806
2004	4409559788.49256
2005	14653432567.9238
2006	22722911602.1333
2007	25269851146.8653
2008	31292774568.5245
2009	10201395859.8815
2010	18818670829.3886
2011	2989495102.05045
2012	16765825825.2079
2013	4973732012.91661
2014	-2045683537.22298
2015	-4702720053.29979
2016	-6304114473.05693
2017	3900497880.12776
2018	9768102504.04167
2019	2156938077.10035
2020	-13766391393.9041