Year	including construction (constant 2010 US$)
1965	16242944023.7454
1966	16751559721.3364
1967	17997360301.6828
1968	18903755346.3002
1969	20378125111.811
1970	21397573234.0043
1971	22915046024.7347
1972	25215023450.4513
1973	27653669465.8744
1974	29113014748.3086
1975	29153654743.5157
1976	30444775076.0929
1977	30893785447.3803
1978	33245240200.3592
1979	35003597326.3166
1980	36249644209.6643
1981	35921076005.9905
1982	35775757235.2502
1983	36991262546.4423
1984	39536311458.4074
1985	41894170089.4188
1986	46219004488.4506
1987	49038927549.8158
1988	50879796181.1939
1989	53231743540.1751
1990	54535425325.8165
1991	56020255763.3144
1992	55771345739.3631
1993	58134040395.876
1994	60254649728.6252
1995	63594575871.1422
1996	61886151461.8935
1997	62712896316.8178
1998	63156590700.2774
1999	58590305466.4348
2000	60451067480.6799
2001	60937867051.3724
2002	62673639509.2284
2003	65702293947.1709
2004	69777993791.793
2005	73149884145.4063
2006	78362529356.4423
2007	82987841005.4566
2008	86237174138.8337
2009	87290210077.5882
2010	89496404504.054
2011	97664238075.9437
2012	100449302809.453
2013	102858242236.33
2014	107037979151.552
2015	109282420331.041
2016	111146411504.442
2017	108751819377.757
2018	109957345392.596