Year including construction (constant 2015 US$) 1967 369095019.6146048 1968 372543871.54229975 1969 382897158.672675 1970 420841310.1089639 1971 330687881.07065713 1972 375670643.1109397 1973 383601698.06706417 1974 383601698.06706417 1975 417989620.40767246 1976 441802848.77126074 1977 494709960.41668123 1978 486772226.67101115 1979 410054580.38770634 1980 414513918.2540422 1981 422753055.12472624 1982 392181997.43154716 1983 469093224.3438922 1984 509026184.2956405 1985 551499094.7497625 1986 579790867.4445795 1987 586998508.2768646 1988 590520741.2713002 1989 594426960.0187851 1990 621432870.188646 1991 702655894.3575722 1992 718387923.2863669 1993 732489618.8841709 1994 669594079.0808544 1995 740387014.2781581 1996 796064144.8454494 1997 981657776.5790453 1998 1061583977.6726817 1999 1090642902.4248886 2000 1324066562.5724418 2001 1586071440.5226157 2002 1860610426.4923766 2003 1862416700.8299596 2004 1955237995.1838179 2005 2121733675.9656708 2006 2148217193.800146 2007 2172854148.959984 2008 2197813715.707694 2009 2269851719.577816 2010 2261749896.8795686 2011 2353733578.454953 2012 2150871459.3753843 2013 2142650425.5395215 2014 2315804635.986701 2015 2306172230.035949 2016 2318572269.7476926 2017 2475108660.2723255 2018 2612267585.890626 2019 2708563972.8978157 2020 2706680890.502478 2021 2733930030.5683746 2022 2834692385.912229 2023 2811400021.4709