Year	including construction (constant 2015 US$)
1960	8770385740.786337
1961	9653551541.713509
1962	9945827305.178242
1963	10313108776.616455
1964	10993794379.962637
1965	11582923720.054804
1966	12581239128.997599
1967	12900277492.490429
1968	13130224569.047623
1969	13261572592.869726
1970	14382784678.25733
1971	14649354260.116129
1972	15307855076.596914
1973	16227291243.351637
1974	17662259600.121265
1975	17586901752.673733
1976	18301744885.003143
1977	19088776609.513603
1978	20607906300.58211
1979	22698206218.56604
1980	23771879474.956367
1981	23797585656.562305
1982	23899353964.56388
1983	20380424200.343296
1984	21333313617.13314
1985	21993222991.510143
1986	23472913061.484615
1987	24997324844.663933
1988	22035127588.922558
1989	19589518941.618248
1990	18453869137.794434
1991	19201109101.736805
1992	18904607664.583424
1993	20300488539.73307
1994	22682007802.75957
1995	24093734954.241642
1996	24685329270.65219
1997	26572092572.63297
1998	26655549627.98374
1999	27009097659.933853
2000	27520052036.78606
2001	28433149693.007816
2002	30754453105.971104
2003	31957713688.813267
2004	34021603146.243153
2005	36840127496.57054
2006	39037477814.666855
2007	42440201552.44966
2008	46455647975.08625
2009	45720732892.73576
2010	49271707349.09526
2011	51547936909.37965
2012	53680141424.775986
2013	56842706041.25403
2014	56617336777.859535
2015	57582198936.767204
2016	60044005999.878
2017	61281776251.177444
2018	63020288834.581535
2019	62984018468.75398
2020	54799944952.26737
2021	64212985233.20207
2022	65196862923.70866
2023	64364757346.519295