Year	including construction (constant 2015 US$)
1968	129515078107.54059
1969	149039723457.6874
1970	166062178515.89334
1971	188812576655.4431
1972	210577412367.0671
1973	235633552253.14597
1974	239435694228.5424
1975	225114542685.28683
1976	268313577638.86758
1977	252425920405.57068
1978	215484080367.82867
1979	190229054659.41077
1980	134452179304.5551
1981	134830162135.02252
1982	183033132215.0174
1983	190330657991.40103
1984	175945398106.6877
1985	179826058524.14377
1986	179438993619.47897
1987	193793313147.31406
1988	193816337895.29828
1989	199480438047.53754
1990	255773752622.022
1991	240320141879.52606
1992	250473238891.80725
1993	253565482445.80426
1994	254074296122.9276
1995	264006228028.22275
1996	284145393003.5137
1997	306960088861.6552
1998	327834191457.673
1999	351099484447.909
2000	375579298319.82806
2001	382520734058.00385
2002	390476776327.4951
2003	393069727830.87195
2004	420854686359.90717
2005	436578473811.5968
2006	458651986532.8498
2007	482400036590.28046
2008	501516849928.2993
2009	499586488058.3438
2010	526664669487.60864
2011	501231299398.954
2012	501464364906.62964
2013	483591919105.7083
2014	485186397453.0971
2015	480457356763.36926
2016	520632522599.30237
2017	538384106333.0812
2018	538537197978.8211
2019	535559339913.61664
2020	501116810980.7849
2021	538604099175.0464
2022	566120961646.9581
2023	580630671018.6069