Year including construction (constant 2010 US$) 1960 2637391323.39227 1961 2848974259.86298 1962 2864357385.04579 1963 3012949674.20383 1964 3453204240.46869 1965 3817330920.69535 1966 3735382319.7557 1967 4059641607.28165 1968 4104808225.12509 1969 4357221032.10708 1970 4717165715.68255 1971 5508120432.87847 1972 6075525365.39269 1973 7875713205.4097 1974 8461751355.03541 1975 9274859383.8351 1976 10041607818.244 1977 9738966066.91545 1978 10508523566.7727 1979 10614316676.9189 1980 10373450581.031 1981 10452797917.2641 1982 10424624643.2089 1983 10739623027.7996 1984 11079285858.2585 1985 11588116017.8415 1986 12031465159.3604 1987 11109570938.6467 1988 12556806715.2283 1989 12511364698.8115 1990 12788689810.3777 1991 13083342499.4553 1992 13341587497.1341 1993 13850442692.9511 1994 14848355682.5952 1995 14797070209.1763 1996 14557748848.9227 1997 14812630228.5713 1998 14880597344.666 1999 13934475560.3664 2000 15461171336.2338 2001 16413669849.3184 2002 17160887517.629 2003 17629163985.4724 2004 20311156776.6032 2005 21210154109.565 2006 22186927755.08 2007 22002251730.8404 2008 23467191880.2542 2009 23426268904.064 2010 24152535000 2011 26317458206.9573 2012 28036324603.6949 2013 29262569298.7037 2014 30328331734.1429 2015 30178891705.5536 2016 29723601532.256 2017 29732002440.5553 2018 29625530848.4692