Year	including construction (constant 2010 US$)
2000	18577469173.1018
2001	18011991568.1134
2002	17547030723.7712
2003	16745389726.2385
2004	16028513708.3714
2005	15474708286.4118
2006	14826618822.899
2007	14763158410.3152
2008	15187549919.4698
2009	14389875197.7236
2010	15629279719.9197
2011	17230408593.8438
2012	18097209836.4403
2013	18432983412.3082
2014	19922943242.0453
2015	20461903460.3469
2016	21099453962.4841
2017	20956781356.3357
2018	20988738206.9583