Year	including construction (current US$)
1975	64405227.46398693
1976	76777123.46541572
1977	90281542.75463423
1978	104459802.11803313
1979	125292099.63705067
1980	172177198.82662955
1981	188807239.09909016
1982	193158653.6071198
1983	218962859.84189332
1984	245214537.86108488
1985	223934768.55764928
1986	223636454.03470394
1987	232188137.02580422
1988	254760602.59533638
1989	268035598.86640483
1990	376373489.7827276
1991	351464227.1167902
1992	298450000
1993	301496544.52344257
1994	308854969.42276144
1995	331327996.81797844
1996	352607766.121414
1997	400785561.5770895
1998	439815044.9957739
1999	451449311.3906429
2000	468300000
2001	448750000
2002	447950000
2003	504050000
2004	519700000.00000006
2005	570850000
2006	684188350
2007	688432300
2008	724526350
2009	688247300
2010	636480750
2011	675914950
2012	654048350
2013	658883600
2014	650381050
2015	644197900
2016	627852400
2017	636029450
2018	628757500
2019	636704100
2020	612380400
2021	624411350
2022	748827500
2023	837760632.46662