Year	including construction (constant 2010 US$)
2006	10544920414.6576
2007	11938810338.9772
2008	14095619505.3349
2009	14204964157.9433
2010	12182273757.9173
2011	12976521137.5351
2012	13989223922.3278
2013	12698751125.3702
2014	12713558926.3758
2015	11156124579.1148
2016	9925193565.1659
2017	9255771425.14347
2018	8744903991.77203