Year	including construction (constant 2015 US$)
1975	765267618.6662654
1976	1009905729.6187835
1977	1261969564.7607548
1978	1400171575.2432666
1979	1545799418.0349562
1980	1620469716.375218
1981	1567251558.1982129
1982	1601492781.5900798
1983	1633258475.7185814
1984	1712879400.882192
1985	1742169997.5584204
1986	1768160140.3412316
1987	1888210248.4867928
1988	2007847732.4285595
1989	2094894381.8677917
1990	2199680417.3660254
1991	2248773076.5993056
1992	2362635059.0653086
1993	2287964591.7273903
1994	2349020892.226059
1995	2419893310.770792
1996	2374193678.3085356
1997	2373617269.481526
1998	2414500828.0592003
1999	2475478939.68763
2000	2474006274.186341
2001	2615216339.3663573
2002	2787957711.122476
2003	3034182497.4349847
2004	3235161289.346644
2005	3352014621.202558
2006	3480132984.86743
2007	3688831224.703913
2008	3646786167.882849
2009	3196953579.530869
2010	3035064346.944338
2011	2768466885.596166
2012	2445235904.2862864
2013	2082696198.6464107
2014	1966252545.3355958
2015	2028941813.7282712
2016	2333112737.7260523
2017	2558680624.82821
2018	2913009208.8779173
2019	3211650080.810289
2020	3119237510.1241903
2021	3127383000.3973064
2022	3106799302.813414
2023	3204941096.861962