Year	including construction (constant 2010 US$)
1960	15412484818.5839
1961	17228956243.6369
1962	17173911654.9923
1963	16320720531.1104
1964	16430809708.3887
1965	16706032651.5789
1966	17008777889.0804
1967	17531701481.1384
1968	20669243033.4976
1969	24494841943.8268
1970	27935128733.6875
1971	31100192580.3581
1972	35228536728.1997
1973	39632103819.2206
1974	44048086516.118
1975	46528724569.5428
1976	51693368300.5737
1977	59010133153.6308
1978	62552305509.1884
1979	68689091180.0871
1980	77243940250.7909
1981	83961776276.539
1982	82772857858.1397
1983	85287018047.4236
1984	93568286004.7716
1985	93190610748.8078
1986	99385974681.0529
1987	104552594252.817
1988	110028471649.234
1989	118663137709.508
1990	130399210071.879
1991	143789991115.979
1992	152082845896.378
1993	163041773484.417
1994	181250308331.155
1995	200136892778.18
1996	221530591164.384
1997	232986664032.494
1998	200481923089.299
1999	204427593639.106
2000	216468431334.313
2001	222386557988.572
2002	231866257597.776
2003	240573021973.793
2004	250054179951.367
2005	261816633037.547
2006	273568402727.569
2007	286480830142.486
2008	297189934282.968
2009	307853964666.338
2010	322998068749.924
2011	343507652159.991
2012	361731711952.609
2013	377438653006.782
2014	393412655038.127
2015	405182897057.283
2016	420679045079.182
2017	437889665831.441
2018	456896218577.392