Year	including construction (constant 2015 US$)
1960	23727995.99062872
1961	23214953.81505389
1962	23984517.078800254
1963	22188891.004257523
1964	33299814.68493275
1965	55270870.62677092
1966	52797291.34753271
1967	55848770.05305159
1968	51213059.84508041
1969	109614698.29726528
1970	186904637.75855866
1971	231227212.4755388
1972	292215106.4902459
1973	354286123.04616517
1974	386155868.74288535
1975	465192969.04783845
1976	526215197.9815027
1977	644151161.2044585
1978	778405432.6294259
1979	861992750.5144215
1980	1045917099.5783046
1981	1229813015.7446811
1982	1505008317.441083
1983	1843540009.1282485
1984	1997173609.785751
1985	2067096575.476459
1986	2214420627.552805
1987	2406791605.0307236
1988	2800519552.346208
1989	3097230573.7998257
1990	3217359901.117223
1991	3365757405.7285967
1992	3304474046.3772306
1993	3276821530.756061
1994	3360471480.4613285
1995	3600234375.5183525
1996	3576518721.8119655
1997	3811628943.1798387
1998	3753492206.3791637
1999	4003895905.0821195
2000	4276378206.516883
2001	4293739533.550858
2002	4841288952.499548
2003	4930162986.435852
2004	4873563090.758671
2005	5148286257.558486
2006	5549833451.824166
2007	5691386642.336205
2008	5563628021.740338
2009	3797265146.1842327
2010	4435957382.69152
2011	4844229261.581659
2012	4663235682.460279
2013	5359831136.04105
2014	5676976082.853051
2015	5079984276.816488
2016	5247809148.6362915
2017	5503103209.903101
2018	5802279059.742731
2019	5716100154.206071
2020	4542154453.957902
2021	5420027352.60121
2022	5834710075.032487
2023	5966160843.61532