Year	including construction (constant 2010 US$)
1975	27379415153.3885
1976	26561340814.4076
1977	26744360381.1709
1978	27264282008.3077
1979	28768698397.0359
1980	30804788428.4287
1981	31138543391.4093
1982	31715992454.3438
1983	32819238026.4183
1984	33113260255.7107
1985	34231074496.8042
1986	34921099638.5219
1987	36375317691.5085
1988	38380496318.3041
1989	41269066057.4332
1990	41065104691.1673
1991	36785889272.9528
1992	35796544204.1176
1993	35483980032.4374
1994	37151430422.8838
1995	37608356860.2976
1996	39881069227.2602
1997	43645083531.9851
1998	47217056290.5505
1999	49850012109.619
2000	54733165079.8936
2001	55428487919.4364
2002	57001904173.4874
2003	58871991505.7434
2004	61776454338.3477
2005	64090223863.4548
2006	69728298773.8044
2007	75579606021.6138
2008	73623431099.7001
2009	60278530278.3042
2010	64953748608.9441
2011	64826603861.142
2012	59772600136.0083
2013	59493146575.7349
2014	58913048663.8878
2015	59624264596.9058
2016	61538057936.2188
2017	65586823499.0421
2018	65866277059.3154