Year	including construction (constant 2015 US$)
1980	36573438.18740836
1981	40949157.43028198
1982	40492190.11835971
1983	48709944.90917276
1984	48117283.50053683
1985	55679623.74748947
1986	56818335.55023435
1987	63318891.19936219
1988	65354851.92660438
1989	72190122.11205843
1990	72982797.67222004
1991	75125538.69171555
1992	86790797.07387266
1993	89975937.58312944
1994	106985061.6528371
1995	115020904.31647034
1996	131696755.0681892
1997	133137577.12453064
1998	148545083.3597842
1999	151871040.91661322
2000	164105494.90150967
2001	149571399.07882518
2002	158600484.29102886
2003	160486106.7831352
2004	172153545.55958527
2005	191387481.78384706
2006	206393773.33321232
2007	234960844.56581846
2008	279006830.70140857
2009	262510592.3192527
2010	254082952.82417607
2011	256232921.2089619
2012	244351126.63196775
2013	253342893.5959334
2014	265286806.7712039
2015	255757282.33079502
2016	222507949.68539435
2017	233382872.99176073
2018	241473733.56984553
2019	250934333.81095067
2020	206210552.4433456
2021	206981330.29392037
2022	223497780.19317645
2023	226133059.59264618
