Year	including construction (constant 2015 US$)
1964	55366028.70715136
1965	61019550.54068076
1966	60348335.4845745
1967	57584084.29267457
1968	55759257.70118247
1969	60339332.35649679
1970	66534140.38631263
1971	67482571.92916591
1972	65480664.15539214
1973	64817360.81469491
1974	65498670.385058634
1975	64991441.57235299
1976	60834555.73580569
1977	54447662.59936121
1978	49714519.56223126
1979	50801011.72169575
1980	53826382.15614265
1981	49806995.21747086
1982	48239609.51937193
1983	47232060.85428015
1984	49892704.87174283
1985	45094854.516978085
1986	49559159.08931596
1987	48642621.09708274
1988	50182586.015415765
1989	54865054.31973038
1990	107197739.60873188
1991	112903220.36326855
1992	136555853.29292458
1993	128352324.00374915
1994	128012766.89988191
1995	106924904.37006012
1996	112848669.67981274
1997	104396527.21833597
1998	98024077.3119983
1999	83593618.85731311
2000	87837886.71210654
2001	78351815.46817648
2002	102805047.60464235
2003	128973438.92160243
2004	143637070.19709358
2005	144970008.8321098
2006	153473958.7673858
2007	156852025.51586872
2008	140596026.3492714
2009	134083907.88270642
2010	147742479.39165354
2011	162758286.53543198
2012	370223575.24672574
2013	731470062.2069379
2014	830524489.0659329
2015	188312982.66351458
2016	239845090.46484947
2017	227080282.78780952
2018	221501378.12059343
2019	245573434.7438314
2020	228172080.2311127
2021	267889837.18688333
2022	289779605.2138276
2023	299244984.8192055