Year including construction (constant 2015 US$) 1960 120380280213.10461 1961 129935395241.55109 1962 138564544096.86865 1963 148752497540.30536 1964 163298663108.1456 1965 174061203320.78894 1966 184305147222.73816 1967 193362297332.69165 1968 199663911155.569 1969 213864926124.85495 1970 233376851995.26 1971 251363157698.5916 1972 257485538590.0916 1973 273542545613.30212 1974 289077083016.3173 1975 282588254426.3275 1976 291300513563.74316 1977 300597870995.4912 1978 304315313906.7623 1979 307328608900.04987 1980 309156558015.66394 1981 305664228612.8233 1982 305449179495.82367 1983 305710004895.66473 1984 302596647372.8233 1985 304508028529.2737 1986 308729134817.244 1987 312386283469.4999 1988 328856052587.79364 1989 341866125296.38586 1990 355665123802.93427 1991 358197991947.99084 1992 363048965375.43024 1993 348030560054.97906 1994 350724548333.47363 1995 361430041831.33264 1996 360242293858.25104 1997 363840451929.1381 1998 378286468425.41895 1999 392671480574.4346 2000 413426532425.3181 2001 423449615581.74664 2002 425361097703.87006 2003 430258321176.1552 2004 440344132862.88104 2005 446126534595.4099 2006 454684802219.7099 2007 466705785238.2868 2008 452954450296.0068 2009 425967396570.51654 2010 427963114020.8091 2011 433852295273.93176 2012 429618117814.597 2013 432478403213.6771 2014 430623886811.89703 2015 431241032276.56226 2016 430989904019.3853 2017 436895732403.9189 2018 444961286434.2372 2019 453562048402.24817 2020 410423199748.2756 2021 429582258357.97205 2022 424622062262.5537 2023 427773659147.1705