Year including construction (constant 2015 US$) 1965 165138408.73405644 1966 185941752.98003465 1967 210400331.19049802 1968 231014564.5462268 1969 208159607.3654271 1970 228325739.63176614 1971 228325739.63176614 1972 245579051.0310656 1973 268882163.89337105 1974 257454658.0093277 1975 245130895.34955984 1976 252749214.40660706 1977 280981876.0084441 1978 280757770.8716332 1979 325571483.054453 1980 330052876.10764986 1981 350891214.60018957 1982 330276926.65234476 1983 306077557.0143148 1984 312575514.1636556 1985 291064914.8479702 1986 324675171.68661267 1987 275828276.72904676 1988 257902813.69083363 1989 331885734.03926665 1990 342007970.8052082 1991 336578528.09578806 1992 370820992.20537734 1993 391363128.9865428 1994 406769791.93521655 1995 413764681.44784755 1996 444406190.67229706 1997 457890467.46824604 1998 463413229.02323395 1999 500781810.0908675 2000 473526412.47507584 2001 507954311.105162 2002 519430293.4119373 2003 523805437.4201519 2004 576307938.1625617 2005 538078680.1525278 2006 541647715.1892174 2007 513744407.4271997 2008 586110132.4706534 2009 592222904.1744517 2010 630914927.5516529 2011 569147702.8691542 2012 556395989.0096476 2013 581003681.0722291 2014 664582399.7769825 2015 710391680.1342467 2016 761837976.7536594 2017 793902840.793642 2018 837456677.2148829 2019 829948510.7443451 2020 745341692.8361074 2021 695535381.0475794 2022 735197555.3406096 2023 847805424.0519086