Year	including construction (constant 2010 US$)
1970	44008273062.1811
1971	45769236084.3789
1972	48139148181.4421
1973	50305506411.1402
1974	52840441654.4878
1975	57035560270.233
1976	60063087704.3981
1977	61779466797.1873
1978	68660503570.9361
1979	71967434551.2201
1980	76283136440.0937
1981	75063647450.71
1982	75910066383.5654
1983	81340257394.1817
1984	88712789648.4213
1985	92216083198.6763
1986	95607419197.5733
1987	100180436674.479
1988	100747362073.625
1989	106828999580.863
1990	108333714622.915
1991	111875962906.383
1992	118341410726.596
1993	120032425628.016
1994	128688693131.118
1995	135552949973.804
1996	143418062920.171
1997	152101645272.301
1998	149743770814.835
1999	149715684147.249
2000	155298454057.631
2001	157793575541.155
2002	159216912549.29
2003	159653131195.367
2004	164468267326.623
2005	165275060846.546
2006	161589831893.01
2007	160307806424.927
2008	159076045123.397
2009	153299160893.423
2010	149071335998.897
2011	146967531371.846
2012	149529299826.279
2013	148251390508.755
2014	150370266841.307
2015	153232831683.441
2016	153475329116.228
2017	155207191898.525
2018	154148618011.857