Year	including construction (constant 2015 US$)
1966	27949220272.387356
1967	29539583258.72176
1968	31934949515.13808
1969	33962615079.194584
1970	35686951977.861885
1971	37189739732.43784
1972	39781408945.05095
1973	38787448242.60889
1974	38532010400.93044
1975	37142454594.87914
1976	38535678406.54034
1977	39172752924.28811
1978	39191749025.632065
1979	40016169924.89284
1980	41676762034.76416
1981	39434053956.55304
1982	41332713869.704475
1983	43947472730.24156
1984	46451741654.06578
1985	49286913346.882576
1986	52252221948.83836
1987	52314211659.822464
1988	52319152423.84217
1989	53429984393.93353
1990	52070312473.76851
1991	51919651796.47065
1992	52613218921.73076
1993	49809582148.36515
1994	53811361999.82788
1995	57078423591.36971
1996	57132685341.59221
1997	60201580990.377785
1998	61452638891.60294
1999	63269596722.1032
2000	65699415893.19452
2001	65052764548.41635
2002	64017747242.943596
2003	63242512518.26845
2004	64890851485.807816
2005	64330315334.73371
2006	66766392470.011475
2007	65113019098.63013
2008	64322156184.885704
2009	57509314368.05447
2010	57596229364.74851
2011	59180199129.375404
2012	60127379606.12588
2013	59365903841.30573
2014	59634192485.19769
2015	60496642597.17137
2016	63992084432.1572
2017	67809472610.086464
2018	68464547525.73461
2019	69567381168.65686
2020	66149563179.109955
2021	73272573678.76137
2022	78385419599.87115
2023	84592329868.86398