Year including construction (constant 2010 US$) 1967 395574343.322339 1968 399270620.064135 1969 410366664.551817 1970 451032975.365239 1971 354411830.145445 1972 402621710.011854 1973 411121748.455608 1974 411121748.455608 1975 447976701.991176 1976 473498320.197098 1977 530201052.106274 1978 521693855.728524 1979 439472392.590274 1980 444251648.755719 1981 453081871.283693 1982 420317608.887858 1983 502746540.363915 1984 545544339.224285 1985 591064307.712132 1986 621385766.443444 1987 629110492.158008 1988 632885414.413142 1989 637071870.024283 1990 666015216.895827 1991 753065279.185549 1992 769925942.922312 1993 785039311.240469 1994 717631569.240646 1995 793503275.344334 1996 853174750.687528 1997 1052083094.32891 1998 1137743297.88538 1999 1168886945.09175 2000 1419056701.31111 2001 1699858126.51216 2002 1994092871.82183 2003 1996028730.46792 2004 2095509136.89197 2005 2222832363.28679 2006 2226326078.91546 2007 2269758839.15494 2008 2305306168.43132 2009 2393151955.19119 2010 2427712169.14979 2011 2581935110.16544 2012 2340048854.89272 2013 2427927736.64933 2014 2737655314.35661 2015 2722041626.56072 2016 2730207653.32135 2017 2902210735.51845 2018 3020620285.07039