Year	including construction (constant 2010 US$)
1968	164947144366.629
1969	191749958537.218
1970	213654605069.205
1971	244103216819.281
1972	273250280002.504
1973	305904457780.965
1974	310348909469.216
1975	287884031616.02
1976	339672551765.463
1977	316559471945.343
1978	261916128287.656
1979	226144669588.078
1980	147806561588.016
1981	145777220049.615
1982	208892743240.305
1983	216505343321.33
1984	193596239689.34
1985	197226080262.126
1986	192709375152.669
1987	212177068347.108
1988	211165809804.535
1989	218166231913.21
1990	286379066594.965
1991	260069580734.784
1992	271539981244.694
1993	279364567868.467
1994	279736741014.131
1995	287353179506.861
1996	301801779988.418
1997	326676795755.645
1998	359999204178.031
1999	379568495058.922
2000	401826873520.855
2001	405616052411.093
2002	414197088850.936
2003	411040101015.641
2004	441880168331.515
2005	455192466747.758
2006	475993015703.095
2007	501560173291.829
2008	525423987997.273
2009	528261628016.813
2010	557021036293.012
2011	568440916544.133
2012	543096263217.901
2013	542538094826.517
2014	561706848888.317
2015	568351165598.35
2016	644731574197.542
2017	652087671372.471