Year	including construction (current US$)
1975	10458792629.70745
1976	10846516387.136482
1977	11221581820.86469
1978	12192914079.422382
1979	15256989772.553808
1980	18262671342.046543
1981	17613667677.046017
1982	17287529295.67041
1983	16616140051.238258
1984	16947962010.288881
1985	17279355333.844975
1986	22151067323.481117
1987	27915595833.89693
1988	32813077469.793888
1989	36175696272.68948
1990	41332607681.54253
1991	33877370974.856636
1992	29548712503.31829
1993	24051212657.437286
1994	29153101878.20148
1995	39573801742.91939
1996	38106393994.30495
1997	36838850074.44737
1998	40921228304.405876
1999	41168812628.57152
2000	39809548087.84322
2001	40085690764.96068
2002	42275655692.94125
2003	50687297172.54891
2004	58005652827.79938
2005	59932804781.32293
2006	65650240087.05873
2007	78631177500.00024
2008	84466957325.78123
2009	65048467808.98433
2010	65245145750.00012
2011	68986694289.8834
2012	60385067578.125015
2013	63286152686.66685
2014	63486395480.78409
2015	54660152556.640594
2016	56574925000.389244
2017	62379864883.52952
2018	66159433548.235245
2019	64116783074.509705
2020	65351892569.64999
2021	71125271286.82056
2022	70860695908.5606
2023	73644124947.06012