Year	including construction (constant 2015 US$)
1960	23807792236.004223
1961	24894007169.391552
1962	26659635818.875237
1963	28828614894.52578
1964	32002244749.72085
1965	33996253029.964382
1966	35448173395.43728
1967	36494312095.54223
1968	38228020927.127815
1969	40477074042.27211
1970	42868315437.14429
1971	43797519374.384224
1972	44071543560.46764
1973	45689807743.53726
1974	46172918500.913864
1975	46351732222.80001
1976	47970231687.08264
1977	47469710119.94344
1978	48772070061.014206
1979	51317420650.406685
1980	53572277368.80518
1981	56565289679.48105
1982	55162229379.24283
1983	54416701642.29121
1984	57272937141.13837
1985	56483254963.21223
1986	55478525756.596695
1987	55047098439.010864
1988	57566724949.11446
1989	58540946025.10995
1990	57896118647.32578
1991	56069787444.88602
1992	55187247614.892685
1993	55471029022.67745
1994	56784232925.84432
1995	58281670073.256714
1996	59408536580.9193
1997	60968343546.70481
1998	60080174747.01628
1999	59909317475.01148
2000	62656359535.41921
2001	63631000070.761246
2002	65308999871.58585
2003	66031421377.822426
2004	69051481185.3968
2005	72677191343.05556
2006	76065440070.0313
2007	79653934363.01315
2008	80217942636.28633
2009	75396546812.20587
2010	78860656099.97116
2011	80173136450.66637
2012	80812357979.05585
2013	82365780095.03584
2014	81866617967.05997
2015	82282235249.82944
2016	81718168407.21962
2017	81376221664.1809
2018	81799692351.50311
2019	80699797697.82906
2020	70975358676.86029
2021	75362103344.48888
2022	73488294134.34506
2023	73378684397.17004