Year	current US$
2011	2720779256.8236
2012	3482133631.58562
2013	2451516859.82522
2014	5800100641.07152
2015	5930024440.438
2016	9068323629.94698
2017	10995112277.5023
2018	16690012128.4233
2019	16730743925.5859
2020	17298745919.8486
2021	15713992973.5519