Year	including construction (constant 2010 US$)
1976	53970298844.6026
1977	57046650383.5124
1978	56586531818.2741
1979	58659030675.2972
1980	59973847226.7935
1981	58856512559.7956
1982	57752449155.6194
1983	59257541133.2627
1984	58086145843.9238
1985	61127963677.3486
1986	62418208711.6775
1987	62587775172.1413
1988	64766467441.6079
1989	66677580145.8213
1990	70811606857.4415
1991	73638910310.5328
1992	74274256985.9006
1993	74060095829.5697
1994	77308248133.001
1995	80011924906.9734
1996	81344150223.2928
1997	82795904846.7907
1998	85147685353.7927
1999	87797620294.3907
2000	91557436173.5892
2001	93369473981.9267
2002	92671078477.6454
2003	94799971592.9015
2004	97855948583.3033
2005	99915362391.5833
2006	103779701848.871
2007	109190081706.698
2008	108923806169.765
2009	96540397770.8884
2010	100069790283.185
2011	104227238116.89
2012	105831275064.37
2013	106519247348.18
2014	106621479671.96
2015	107229827557.459
2016	110705766298.7
2017	115926700482.302
2018	121370124730.314