Year	including construction (current US$)
1970	22827428.57142857
1971	24670857.14285714
1972	26640000
1973	35382250.76850024
1974	41843809.52380952
1975	52971428.571428575
1976	52653913.04347826
1977	66701000
1978	87303333.33333333
1979	115147777.77777778
1980	107338888.8888889
1981	123223333.33333333
1982	144838888.8888889
1983	156820871.43625605
1984	124191796.84236906
1985	135949125.8596404
1986	145755452.39555052
1987	177768695.3706701
1988	160354713.48694754
1989	192295814.50459138
1990	196157776.41528714
1991	204701591.62153673
1992	205625598.7671805
1993	188884914.33278418
1994	181055397.50576854
1995	168078695.37712505
1996	102394715.11147812
1997	135139490.27955157
1998	131306404.07750808
1999	130258901.27049473
2000	135269797.54950255
2001	136544917.56488228
2002	130445353.91993533
2003	123518041.97225252
2004	149397628.2348239
2005	189160797.9923267
2006	195021101.88788056
2007	232672200.90191972
2008	248467806.10979047
2009	301413818.36618274
2010	312667496.4182137
2011	331117936.6600721
2012	367520230.64034843
2013	382078003.02813566
2014	419348025.5817063
2015	365230363.78841937
2016	322822224.7729456
2017	299407477.4213083
2018	296249715.48212564
2019	281767589.4161394
2020	284653825.6487643
2021	294217729.54560083
2022	355166261.1412319
2023	253305148.0132617