Year	current US$
2007	-589618016.479081
2008	-876000959.308879
2009	-567154219.891621
2010	-425563985.954748
2011	-295651498.280488
2012	-279879025.365976
2013	-190473415.762197
2014	-232686227.302511
2015	-110005237.380812
2016	-137332341.038954
2017	123209065.511224
2018	129853771.72654
2019	283702493.689895
2020	-343239155.613411
2021	303436653.854135