Year	including construction (constant 2015 US$)
1968	130316109451.14243
1969	149961511806.00797
1970	167089248197.05884
1971	189980354138.78485
1972	211879802096.7056
1973	237090910452.02905
1974	240916568105.59686
1975	226506842386.80707
1976	269973056895.97934
1977	253987136884.27673
1978	216816817103.53534
1979	191405592846.87497
1980	135283745878.98201
1981	135664066476.5957
1982	184165164700.84198
1983	191507824580.24316
1984	177033594019.51367
1985	180938255739.9352
1986	180548796896.85663
1987	194991895739.23856
1988	195015062891.83768
1989	200714194654.46185
1990	257355674941.14212
1991	241806485932.72192
1992	252022378328.06046
1993	255133746944.90726
1994	255645707558.35178
1995	265471881670.2458
1996	285415497078.9575
1997	308234624971.33386
1998	329336523266.914
1999	352937663040.02106
2000	376919827333.2025
2001	383800394203.99695
2002	391450215048.9457
2003	394358287209.5125
2004	422277318836.1082
2005	438329504089.7053
2006	459961139778.36896
2007	483690741601.4758
2008	503065288145.2342
2009	501465413470.5349
2010	528915101182.59015
2011	503758541387.919
2012	504142879852.55835
2013	486541519105.7084
2014	487602797453.09705
2015	482752356763.3693
2016	523242222599.30237
2017	541297106333.08124
2018	541514597978.82104
2019	538523139913.6166
2020	503505610980.7849
2021	541101099175.0466
2022	568705291332.5797
2023	582992273312.4047