Year	including construction (constant 2015 US$)
1968	2224542692.664097
1969	2336183510.4538894
1970	3816447571.3448215
1971	4770449931.248865
1972	6065075796.94094
1973	7798229346.509365
1974	9059292407.981598
1975	7763771045.134871
1976	9519286234.785603
1977	10303114292.165405
1978	9814530821.107111
1979	11325093099.09469
1980	12192785782.90678
1981	12443287853.033545
1982	9341215553.557863
1983	7441587327.06262
1984	7271827982.519357
1985	6657597998.221405
1986	8955694565.59384
1987	9665306864.835114
1988	12370370272.656582
1989	14498587978.293472
1990	19352050579.991734
1991	25075636689.92385
1992	28689847455.2343
1993	31640130629.731094
1994	36280432602.07552
1995	42078713635.317696
1996	49006946464.983955
1997	54493319328.72965
1998	61989570293.32518
1999	68679079673.48218
2000	82277612423.44022
2001	88356397605.61856
2002	93940439627.767
2003	116484009725.40509
2004	136560323489.27539
2005	153090312924.88928
2006	162650882988.19794
2007	169125824973.07965
2008	185444662610.14297
2009	178345914690.42722
2010	193638592653.6261
2011	227314490454.05853
2012	246646561769.0677
2013	255446016100.55173
2014	273145150872.27698
2015	298854400000
2016	324764138902.8514
2017	344024703949.9758
2018	363877759719.9681
2019	376704259696.14746
2020	375890110933.758
2021	414282403248.97107
2022	490523943738.2173
2023	483106669087.6373