Year	including construction (current US$)
1978	24265760.439713895
1979	19239002.01309799
1980	2405937.3021620414
1981	2724614.032164465
1982	2474988.918338552
1983	2397264.901825651
1984	1462020.378773851
1985	1380687.829764054
1986	1558850.6217354045
1987	1698665.4343290061
1988	1554017.9450397997
1989	1746010.784463351
1990	1807882.084872102
1991	5319936.187250537
1992	4314918.393006122
1993	4484210.096833859
1994	4753277.460590415
1995	4892763.927939495
1996	5472339.366583115
1997	5148658.878712761
1998	6790683.415544895
1999	8005419.529662248
2000	7057113.553997009
2001	6596422.339020255
2002	6640250.836293026
2003	7966657.024970264
2004	8133541.998835081
2005	7567624.532922786
2006	10970253.160267565
2007	13929704.653778182
2008	15372872.171773007
2009	13684410.02067558
2010	18521334.961230423
2011	23308470.771963447
2012	25939815.75914707
2013	26789484.50682198
2014	25859975.499453288
2015	26055338.106363956
2016	27633075.4809272
2017	24241506.8541446
2018	21826836.579468805
2019	16702227.189848157
2020	17611098.454788122
2021	26321434.223309