Year	including construction (constant 2015 US$)
1966	1395614380.8436465
1967	1535806196.4883873
1968	1471303718.893227
1969	1695476399.191988
1970	1851892645.2921355
1971	2182411638.7177343
1972	2551070373.961862
1973	3077105025.4470205
1974	3235463408.425195
1975	3494910945.8507204
1976	3759127739.4888415
1977	3979467376.2080226
1978	3883605326.3874936
1979	4190745426.136434
1980	4371500236.054121
1981	4516962550.275034
1982	4317130715.309507
1983	4712025128.896327
1984	4755425360.575752
1985	4457823773.515276
1986	4783563972.08527
1987	5687814948.229585
1988	5652045526.635114
1989	5961570254.22708
1990	5598240209.109658
1991	5880575751.055037
1992	6556219427.908569
1993	6984994313.355369
1994	7350966145.201098
1995	7771711430.19343
1996	8333803398.283103
1997	9234560320.416334
1998	10002840155.74954
1999	11039673264.905027
2000	11352469158.734451
2001	11211632891.057524
2002	11850474951.008085
2003	11524142410.700884
2004	11910225210.37127
2005	12848044849.47553
2006	14080144836.70196
2007	14661019545.315195
2008	14932999077.959728
2009	14226544052.933784
2010	15580175577.795113
2011	15884025394.793041
2012	15791428328.92376
2013	17267733116.79195
2014	18795994145.99225
2015	20279391068.57269
2016	21641735243.382133
2017	22315448800.34512
2018	24049794977.90284
2019	25486366588.124084
2020	23893598147.80763
2021	27690995321.968105
2022	28086445157.33444
2023	28067439195.010822