Year	including construction (constant 2010 US$)
1970	6261616152.86353
1971	6799913558.90061
1972	7127506276.38328
1973	7370463472.82296
1974	7441663455.23622
1975	8153914789.43921
1976	8598644493.38259
1977	9337129451.04024
1978	9942439656.276
1979	10052123061.8222
1980	9623097762.38683
1981	11485281556.5061
1982	12410511039.71
1983	13071668052.0697
1984	14196213310.1077
1985	14940599905.6205
1986	14268772433.8822
1987	13454418221.267
1988	14463405492.8056
1989	15167270889.0741
1990	15462492150.4041
1991	12612891627.0645
1992	9206869990.61168
1993	7419340106.16635
1994	7789385509.62625
1995	8523590334.53951
1996	9696868831.16883
1997	10213708129.2753
1998	9566491008.22841
1999	10245974085.4565
2000	11038169009.6163
2001	10846179270.348
2002	10894505204.7189
2003	10898593199.1672
2004	11260526707.6435
2005	12135237111.1894
2006	13762963309.2099
2007	14242134658.4713
2008	14821023872.3109
2009	14922639734.3115
2010	14727000000
2011	14852559829.4835
2012	15522698919.4012
2013	16074578169.9217
2014	15608838802.419
2015	16984156934.6684
2016	16662957370.8734
2017	17029416873.2031