Year	including construction (constant 2010 US$)
1970	28838929.1968595
1971	32245668.8223688
1972	32352167.5231505
1973	39925860.7776662
1974	45528694.2919775
1975	44961391.8741948
1976	52227898.9013699
1977	58307868.0460546
1978	55283283.0054629
1979	58648473.7558332
1980	65429289.180107
1981	59998403.9000173
1982	85396515.8371967
1983	73296834.9953743
1984	82286200.4393953
1985	85430471.5914171
1986	87636876.5240348
1987	93108993.7913921
1988	121481122.777684
1989	146710565.051311
1990	173001362.31023
1991	256342750.609419
1992	285693075.890748
1993	297303810.93499
1994	324671941.640715
1995	362721850.595662
1996	389926296.527812
1997	381345387.362035
1998	387812690.989536
1999	409857312.651596
2000	468675211.726675
2001	495559405.900787
2002	527200988.9363
2003	566987284.982603
2004	567646436.131112
2005	580742631.824539
2006	618202775.886819
2007	661296369.706986
2008	719228847.505378
2009	673848773.625088
2010	720109271.704092
2011	743587628.164328
2012	781584019.632994
2013	711538734.522106
2014	697909021.533187
2015	738623945.298643
2016	760732931.762584
2017	732580162.311274
