Year	including construction (current US$)
1971	2806693594.9221
1972	3285123966.9421487
1973	4336997356.337832
1974	5035852178.709322
1975	4419471425.344478
1976	4805144193.29696
1977	5510022711.5631485
1978	6515468227.424749
1979	7180206350.796354
1980	8039953676.896352
1981	8797768712.013987
1982	8926438455.935907
1983	8753286014.721346
1984	7761070206.367312
1985	8314578005.115089
1986	9612378538.234053
1987	11619312906.220985
1988	12545571658.615137
1989	12167840445.049417
1990	12072551246.040758
1991	11107922574.836823
1992	10811888558.0604
1993	12145345943.25535
1994	14679162342.023323
1995	16441950053.134962
1996	17578742888.858055
1997	16394755090.462082
1998	13387546712.984894
1999	14136696247.859255
2000	12413823387.344664
2001	12449773982.923153
2002	15896298486.864803
2003	20525222914.37645
2004	24471932773.10924
2005	27466028303.879463
2006	25648790610.20686
2007	31510986991.989418
2008	30943276867.927177
2009	25979761384.221375
2010	31026048753.939747
2011	35332297408.592514
2012	36869158734.43208
2013	38731090011.71973
2014	43036805574.75885
2015	37679875869.52353
2016	37947129357.303215
2017	42267051140.09803
2018	43051126961.15468
2019	43153751132.339615
2020	42072338378.89925
2021	48115009195.0771