Year	current US$
2011	-789720670.3910614
2012	-652122905.027933
2013	-540223463.6871508
2014	-382290502.7932961
2015	-346424581.00558656
2016	-395083798.8826813
2017	-623463687.150838
2018	-876648044.6927375