Year	including construction (constant 2015 US$)
1960	1421255792.595111
1961	1431007242.98988
1962	1517997590.108278
1963	1571376647.0305636
1964	1653126446.6080868
1965	1662515600.5790665
1966	1798315643.5591908
1967	1958907248.6707172
1968	2266029461.642736
1969	2499224445.981104
1970	2731580086.316071
1971	2735458053.0035667
1972	2697809058.6859717
1973	2855744785.835741
1974	2746033451.0496416
1975	2785222084.858434
1976	3005493961.7070417
1977	2887107721.2848554
1978	3321858581.690788
1979	3658144692.051083
1980	3830791192.368369
1981	3920277920.420323
1982	4013392423.7156982
1983	4076972313.323966
1984	4356077660.189503
1985	4572192510.732978
1986	4850494358.245729
1987	5149412939.569367
1988	5368364094.426971
1989	5546702449.214011
1990	5975701313.139772
1991	6202288117.646246
1992	6608543621.184737
1993	7226985488.03328
1994	7793245609.813024
1995	8333288558.529222
1996	8769458773.14318
1997	9418135309.757847
1998	9954396520.10936
1999	10431013543.639109
2000	11184912402.654108
2001	10933089946.62642
2002	11024395374.7131
2003	11538796110.434217
2004	12163199269.80823
2005	13134591438.125788
2006	14200719543.06808
2007	15280896857.269234
2008	16185242542.644846
2009	16866965993.846775
2010	18291252710.857635
2011	20370611911.371784
2012	21980358964.876526
2013	22634038067.683758
2014	24874608034.852085
2015	25146736955.520256
2016	27014493295.60433
2017	30516022780.526455
2018	30189608385.993584
2019	28954934372.754375
2020	27415358686.97385
2021	28985613709.624043
2022	24353401876.57584
2023	22104830248.866325