Year	including construction (constant 2010 US$)
1970	23648624.6795001
1971	25117865.1195218
1972	28558045.6313244
1973	31134276.4278263
1974	34718581.3679392
1975	36926452.8625967
1976	36733879.6769627
1977	42327586.2023459
1978	45525310.4329807
1979	48125287.4954076
1980	66387212.0207018
1981	68941258.0638352
1982	67453740.7714075
1983	66347869.4846374
1984	65371702.3107593
1985	66037969.9846579
1986	68387663.4239894
1987	75235948.6204442
1988	79570411.1906478
1989	91398907.9244495
1990	101442244.003399
1991	108797209.428514
1992	120266443.375774
1993	130710337.997262
1994	123297359.384922
1995	122970224.025712
1996	120766177.432949
1997	122755923.272375
1998	120227928.738647
1999	131388779.970705
2000	163870962.450695
2001	164780067.257799
2002	168375315.66722
2003	162565661.55574
2004	174562997.582554
2005	173060076.756411
2006	215795546.246839
2007	220569023.810515
2008	234983432.216132
2009	274233937.968416
2010	263165150
2011	255767577.24251
2012	240371656.51199
2013	223435415.914584
2014	218634101.564902
2015	211988440.771402
2016	215121035.422564
2017	215327580.124839