Year	current US$
2011	10079844913.151363
2012	13699443639.524776
2013	13812145920.328896
2014	16182860468.042276
2015	19565922931.79373
2016	20124738792.972416
2017	19195112769.10693
2018	19235875928.399178
2019	20022068000.881866
2020	18171455003.668613
2021	18595574210.79148
2022	23264741856.64956
2023	22905283373.308914