Year	constant 2015 US$
2006	6763247886.669583
2007	7213496651.085317
2008	7341902799.678158
2009	7290482199.837391
2010	7589914282.063393
2011	8535053850.31621
2012	9379770459.80879
2013	10457433369.028622
2014	10406461978.507261
2015	11384005724.13014
2016	14767295098.837297
2017	12029669524.379133
2018	12394404731.058813
2019	12549945649.958828
2020	13137270679.018982
2021	15297362238.820621
2022	15801847199.009155
2023	14549056612.174736