Year	current US$
2009	-1822609495.08428
2010	-2368530527.05617
2011	-1956679871.5834
2012	-194013007.599192
2013	1310040622.78426
2014	697626445.447443
2015	350171747.036316
2016	1035941501.99066
2017	1026661541.35396