Year	including construction (constant 2015 US$)
2006	38249986236.13694
2007	39543480843.48716
2008	39571103934.86353
2009	36593502799.35941
2010	37555079095.18638
2011	38691577075.72064
2012	38282298618.18205
2013	38876812599.6045
2014	39348613401.20406
2015	40082705660.551476
2016	41321213361.12493
2017	42531177153.51008
2018	43835331094.950485
2019	45528729186.810295
2020	44864525950.651054
2021	45988854454.76907
2022	45369993016.036575
2023	45088563906.03416