Year	current US$
2007	812251197.749493
2008	837323568.287164
2009	518840362.115299
2010	364634765.205601
2011	154744351.119338
2012	227509323.826949
2013	337794274.857168
2014	436929451.47184
2015	394763630.059436
2016	131884565.268931
2017	-68019105.5621696
2018	145392297.033209
2019	135220981.55279
2020	184917510.306973