Year	including construction (constant 2015 US$)
1968	3688354401.4252434
1969	3805803317.0162816
1970	3847605037.6159673
1971	4195838919.931559
1972	3691452291.2570577
1973	5064749802.739296
1974	5459358644.174455
1975	6697339429.305949
1976	8293304436.75721
1977	8011613252.108589
1978	9820890221.645824
1979	12919084787.275307
1980	13528035479.854836
1981	11245737274.10219
1982	11782267671.281353
1983	10638352115.053293
1984	9559919323.275784
1985	9339142342.809027
1986	9735480237.745623
1987	12832384632.120846
1988	12276794027.733927
1989	11008515950.367144
1990	32593456521.066254
1991	6421960833.275788
1992	9133366171.457144
1993	8262918698.17682
1994	9381871238.86721
1995	10730116656.021297
1996	11678586986.440655
1997	24686142170.555557
1998	39407545319.03218
1999	47315383403.280174
2000	48509991180.49541
2001	49262436222.441284
2002	43230749983.08351
2003	26420692214.791164
2004	37652216155.06471
2005	36658297311.911
2006	38717782821.34596
2007	41469857929.28921
2008	46585229475.56006
2009	47919017919.7775
2010	50346318053.97202
2011	53991485280.01606
2012	62440080285.56601
2013	66057964088.80305
2014	67612331247.399025
2015	75615860872.53452
2016	91606562833.1654
2017	88328021293.98125
2018	86897026730.62296
2019	93288153094.2679
2020	77957043078.30814
2021	77871354325.70409
2022	87731675992.51326
2023	82172204354.40024