Year	including construction (constant 2015 US$)
1960	258442645.61695588
1961	294303721.7151807
1962	308847299.5064686
1963	296381492.3387865
1964	306769427.89576524
1965	337931310.8334712
1966	356629305.09843206
1967	450116630.92516375
1968	452632596.74082696
1969	468814625.19012463
1970	540344110.2592605
1971	545655576.9755371
1972	582666069.7034653
1973	667278249.5327464
1974	833330211.0472138
1975	1053112105.5053103
1976	1156754876.696421
1977	925650802.8464065
1978	967043574.1484818
1979	1203843782.5265331
1980	1501825613.7404919
1981	1444779465.6496434
1982	2033271104.750099
1983	2388680281.837233
1984	2593660457.6486588
1985	2468027446.415931
1986	2255129084.021054
1987	2290984084.138888
1988	2359189585.171979
1989	2603578824.155466
1990	2719260620.7835927
1991	2728479941.6457705
1992	2812729061.123386
1993	2949060366.355514
1994	2856930432.7181745
1995	3001986458.757636
1996	3194660972.0648055
1997	3592593759.7763724
1998	3795238011.6528673
1999	3915138233.2801127
2000	4030687054.032978
2001	3904601866.7232914
2002	3958161730.237074
2003	3808896536.3824196
2004	3887041255.528676
2005	4326056531.795234
2006	4702163992.595
2007	3937507884.2462316
2008	4357184433.044479
2009	5053014113.263802
2010	5719420848.943615
2011	5596739199.330674
2012	6000328857.782773
2013	5782675322.666022
2014	6139765644.021203
2015	6053127919.172744
2016	4922960606.068496
2017	5218429723.567227
2018	4993213264.919121
2019	5006408676.934968
2020	4883884428.639259
2021	4722363411.442301
2022	4693220906.333099
2023	4728309474.16148