Year	current US$
2008	7376226746.740883
2009	6987133926.09058
2010	7419496519.330937
2011	8640299326.015362
2012	8155526262.369305
2013	8695026861.191721
2014	9198289421.942589
2015	8129050833.4664755
2016	8511326391.571592
2017	9029987370.171463
2018	10101213666.472597
2019	10042793680.363987
2020	10203432576.42668
2021	12408754910.53104
2022	12419637486.381554
2023	13644820538.330936