Year	including construction (constant 2010 US$)
1960	9393806259.50797
1961	10339749650.6124
1962	10652801091.8471
1963	11046189830.6516
1964	11775260235.3585
1965	12406266333.1726
1966	13475544448.7152
1967	13817260841.1955
1968	14063553119.6609
1969	14204237683.0109
1970	15405148272.0366
1971	15690666273.2591
1972	16395974942.065
1973	17380766885.5154
1974	18917736310.8545
1975	18837021842.8735
1976	19602677777.4595
1977	20445653646.3265
1978	22072766799.9247
1979	24311650360.3696
1980	25461642943.8932
1981	25489176383.9054
1982	25598178632.7209
1983	21829114714.3372
1984	22849737846.8446
1985	23556555197.295
1986	25141425264.8471
1987	26774195974.6122
1988	23601438476.219
1989	20981989970.9479
1990	19765615395.066
1991	20565971007.4757
1992	20248393521.3075
1993	21743497031.0116
1994	24294300521.4578
1995	25806376699.6625
1996	26440022990.3545
1997	28460902053.1684
1998	28550291440.6053
1999	28928970533.3759
2000	29476244799.92
2001	30454247675.9701
2002	32940555026.1137
2003	34229346320.9318
2004	36439942100.5422
2005	39458814071.1959
2006	41812357436.6231
2007	45456955119.3351
2008	49757829317.4066
2009	48970674669.3863
2010	52774061095.1825
2011	55212090632.7019
2012	57495857472.0708
2013	60883224934.3948
2014	60649756449.9077
2015	61679431672.2821
2016	64303406222.4867
2017	65506579833.9791
2018	67518783977.3372