Year	including construction (constant 2015 US$)
1960	1672933814.310082
1961	1855769367.0600398
1962	1828908591.38583
1963	1928181843.27484
1964	2131190331.1291835
1965	2255280309.3181796
1966	2483678131.8403454
1967	2695612071.7188497
1968	2886698937.194116
1969	3076444647.701064
1970	3171496482.5502057
1971	3355577481.4945836
1972	3624196062.2907763
1973	3997672059.0314083
1974	4099905272.2084966
1975	4184425380.480755
1976	5186292299.38802
1977	5795070602.584194
1978	6159601990.149243
1979	6605419215.410869
1980	7063517681.137228
1981	7171354953.433413
1982	6697871671.22537
1983	6039852770.546942
1984	5596944569.438007
1985	5458401029.006016
1986	5597081338.428109
1987	5850126942.228419
1988	6161716496.060543
1989	6400388288.469467
1990	6390815470.807578
1991	6548597722.886949
1992	7169509394.405993
1993	7329263479.1697855
1994	7508940886.071832
1995	7912489749.716364
1996	8188649303.321552
1997	8722884879.849632
1998	9270060086.905205
1999	9656918453.87549
2000	9411398070.831623
2001	9691876691.059027
2002	10251791479.586433
2003	10312911173.59997
2004	10347951222.21013
2005	10625856604.836044
2006	11315807235.995516
2007	11926020252.902794
2008	12039638030.91127
2009	11697107267.58246
2010	11729809708.911514
2011	12226604822.513754
2012	12401760029.04479
2013	12817869360.78369
2014	13739624823.430706
2015	14139563268.348091
2016	14386152980.384762
2017	14646942272.565765
2018	15024605155.888962
2019	15662068472.656052
2020	15532520132.244696
2021	16864862829.685751
2022	17646922934.324146
2023	17984012915.901474