Year	current US$
2011	47911793818.68132
2012	53215364642.85714
2013	60259025082.41758
2014	67746452829.67033
2015	74510761401.09889
2016	77046723873.62637
2017	76200434120.87912
2018	79003462362.63736
2019	81932440357.14285
2020	76168138928.57143
2021	80463901510.98901
2022	90845727939.56044