Year including construction (constant 2015 US$) 1970 322244664.9220397 1971 335124290.9439185 1972 341887660.6193271 1973 386605628.27699685 1974 341435518.34794736 1975 413079936.503557 1976 457582469.18179244 1977 380176997.6648874 1978 409295691.1688174 1979 397342754.76058006 1980 413828397.65799105 1981 408311654.73657477 1982 440553487.2045108 1983 444003357.30501753 1984 451765565.3525314 1985 476788528.85282403 1986 524977194.378857 1987 568917825.1848463 1988 563508819.7459857 1989 560449053.9190924 1990 603206268.6959895 1991 603966175.2430348 1992 629108725.9575845 1993 662288733.5020225 1994 632068519.2193207 1995 633322304.289047 1996 627812315.0398153 1997 755875925.8515215 1998 788713105.9439899 1999 1062376898.1986552 2000 1029536987.9504653 2001 1081613970.0266895 2002 1147007658.6678097 2003 1306135831.229781 2004 1378882142.4842649 2005 1448409405.1197212 2006 1524606986.5484972 2007 1734864783.24047 2008 1697610472.8563747 2009 1891260072.1239452 2010 2118533423.5385852 2011 2383759357.887401 2012 2342607980.500413 2013 2451533237.084223 2014 2706260299.166137 2015 2882476794.293742 2016 3026572386.9354157 2017 3206554174.7788625 2018 3510473890.690844 2019 3845030852.214295 2020 4249218345.811555 2021 4544415255.971476 2022 4173554632.371298 2023 4255084275.07468