Year	including construction (constant 2015 US$)
1960	31406374917.504616
1961	18247103822.938446
1962	16312910823.173042
1963	18678282890.453762
1964	23441245031.341187
1965	29067143843.80889
1966	35520049772.62216
1967	30440682656.954906
1968	27640139844.29345
1969	36761386002.9946
1970	49480825553.9031
1971	55616447921.07764
1972	59342749941.015
1973	64268198188.25979
1974	65167952964.21547
1975	75399321568.72922
1976	73589737855.30614
1977	83303583257.45438
1978	96045711349.44234
1979	103945183095.65927
1980	117966979940.07837
1981	120188644869.13226
1982	126889720245.84677
1983	140065814124.88834
1984	160268156240.4272
1985	189757780908.3168
1986	209147634701.63168
1987	237582031301.7772
1988	271649326731.48123
1989	281833014837.858
1990	290780281491.7328
1991	330865420532.3959
1992	400459804172.60187
1993	479529070313.1919
1994	566523621100.2645
1995	644846416683.2145
1996	722822523987.0524
1997	798560089849.7616
1998	869656322933.7843
1999	940995517934.1211
2000	1030143941194.8689
2001	1117616250137.338
2002	1228201570358.4675
2003	1383780767895.3484
2004	1538015897518.0854
2005	1724552484028.734
2006	1956516788051.2495
2007	2250986539177.1846
2008	2472460877558.237
2009	2726946453984.436
2010	3072821317113.4453
2011	3401265207112.6216
2012	3685734798255.42
2013	3980122334820.1733
2014	4264922592384.534
2015	4517694479123.126
2016	4790178456331.815
2017	5071279996122.103
2018	5365029164812.346
2019	5626553981778.771
2020	5765206387164.888
2021	6265297980910.552
2022	6500690558498.991
2023	6733092502731.282