Year	including construction (constant 2015 US$)
1960	2539460631.6597204
1961	2743187144.642837
1962	2757999068.9567494
1963	2901073881.2638807
1964	3324981069.0144844
1965	3675587124.8102765
1966	3596681410.6430826
1967	3908900415.7780724
1968	3952389922.5736613
1969	4195430225.5378017
1970	4542009569.084201
1971	5303594832.513153
1972	5849931083.634719
1973	7583274978.745933
1974	8147552564.881831
1975	8930468550.900557
1976	9668746350.763992
1977	9377342187.03734
1978	10118324747.113905
1979	10220189584.516132
1980	9988267244.210552
1981	10064668282.92195
1982	10037541129.019836
1983	10340843103.826538
1984	10667893692.92874
1985	11157830149.089527
1986	11584717005.434046
1987	10697054238.310125
1988	12090551762.491026
1989	12046797083.125458
1990	12313824655.697998
1991	12597536404.237495
1992	12846192339.034452
1993	13336152901.792498
1994	14297011735.521435
1995	14247630576.354322
1996	14017195613.099976
1997	14262612826.554482
1998	14328056211.479115
1999	13417065490.18201
2000	14887074943.42168
2001	15557773280.790268
2002	16038248186.192755
2003	16452819819.484108
2004	19030819772.978703
2005	19753522283.795017
2006	20610094312.84133
2007	20375508503.09542
2008	21547807025.976715
2009	21458258146.491497
2010	21835765516.680435
2011	24075618010.014896
2012	25540161711.303463
2013	27782072738.322784
2014	28184463677.903366
2015	27306206000
2016	27112950715.57483
2017	27925004955.540714
2018	26739590606.951164
2019	26346431986.692337
2020	23384404492.899117
2021	26296675504.683952
2022	27586670113.755257
2023	27380058338.12201