Year	constant 2010 US$
2010	3223799139.34801
2011	3797313863.26454
2012	4187152610.76079
2013	4515577245.35066
2014	4866737233.21269
2015	4897780508.09976
2016	4952649695.86553
2017	5344679120.5604
2018	5627235753.84274