Year	including construction (current US$)
1979	7213706.04147881
1980	7473790.487904879
1981	6386492.610388723
1982	6597164.476966573
1983	9741370.635000503
1984	10692330.948301924
1985	11685151.652331373
1986	12122230.938772462
1987	17460331.910167594
1988	19583245.551874053
1989	18657037.96901122
1990	22313343.58448659
1991	24023997.134670485
1992	21385988.429518837
1993	18892754.624489024
1994	27842446.630299386
1995	28623417.862653974
1996	25966934.899166662
1997	23207042.375075515
1998	21440194.483110163
1999	22304861.514623284
2000	30528176.762473483
2001	23335913.97849462
2002	23506028.624638774
2003	25755147.34460871
2004	27730566.240271937
2005	30994317.192858055
2006	35565531.21757498
2007	41049420.37827944
2008	53812057.28962079
2009	66347617.87927962
2010	86341551.80318196
2011	76976239.19981283
2012	58885440.561327755
2013	62268292.03797234
2014	58029290.87433926
2015	72530144.21148847
2016	77916570.63839595
2017	89500328.75372054
2018	91744201.87899968
